Cannot resolve Symbol "response"

I'm new to Retrofit, I have an activity hosting 3 fragments for a weather app. My FirstFragment is where the current weather data will be displayed using OpenWeatherMap One call API https://openweathermap.org/api/one-call-api. I noticed that retrofit request calls cannot be made on the fragment class, so I tried using my Activity class and everything worked properly except these following lines:

call.enqueue(new Callback<WeatherResponse>() {
        @Override
        public void onResponse(@NonNull Call < WeatherResponse > call, @NonNull Response < WeatherResponse > response) {
            if (response.code() == 200) {
                WeatherResponse weatherResponse = response.body();
                assert weatherResponse != null;

            time_zone.setText(response.body().getTimezone());
            time_field.setText(response.body().getCurrent.getDt());
            current_temp.setText(response.body().getCurrent().getTemp()+" ℃");
            current_output.setText(response.body().getCurrent().getWeather().getDescription);
            rise_time.setText(response.body().getCurrent().getSunrise()+" AM");
            set_time.setText(response.body().getCurrent().getSunset()+" PM");
            temp_out.setText(response.body().getCurrent().getTemp()+" ℃");
            Press_out.setText(response.body().getCurrent().getPressure()+" hpa");
            Humid_out.setText(response.body().getCurrent().getHumidity()+" %");
            Ws_out.setText(response.body().getCurrent).getWind_speed()+" Km/h");
            Visi_out.setText(response.body().getCurrent().getVisibility()+" m");
            UV_out.setText(response.body().getCurrent().getUvi()); 

showing error Cannot resolve Symbol "response". What can be done to fix it, please? My full code: HomeActivity.java

public class HomeActivity extends AppCompatActivity {
    public static String BaseUrl = "http://api.openweathermap.org/";
    public static String AppId = "";
    public static String lat = "9.0574";
    public static String lon = "7.4898";
    // User Timezone name, current time, current temperature, current condition, sunrise, sunset, temperature, pressure, humidity, wind_speed, visibility, UV Index
    TextView time_zone, time_field, current_temp, current_output, rise_time, set_time, temp_out, Press_out, Humid_out, Ws_out, Visi_out, UV_out;
    ConstraintLayout constraintLayout;
    public static int count=0;
    int[] drawable =new int[]{R.drawable.dubai,R.drawable.central_bank_of_nigeria,R.drawable.eiffel_tower,R.drawable.hong_kong,R.drawable.statue_of_liberty};
    Timer _t;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home);

        time_zone = findViewById(R.id.textView9);
        time_field = findViewById(R.id.textView4);
        current_temp = findViewById(R.id.textView10);
        current_output = findViewById(R.id.textView11);
        rise_time = findViewById(R.id.textView25);
        set_time = findViewById(R.id.textView26);
        temp_out = findViewById(R.id.textView28);
        Press_out = findViewById(R.id.textView29);
        Humid_out = findViewById(R.id.textView30);
        Ws_out = findViewById(R.id.textView33);
        Visi_out = findViewById(R.id.textView34);
        UV_out = findViewById(R.id.textView35);

        BottomNavigationView bottomNavigationView = findViewById(R.id.bottomNavigationView);
        NavController navController = Navigation.findNavController(this, R.id.fragment);
        NavigationUI.setupWithNavController(bottomNavigationView, navController);

        constraintLayout = findViewById(R.id.layout);
        constraintLayout.setBackgroundResource(R.drawable.dubai);
        _t = new Timer();
        _t.scheduleAtFixedRate(new TimerTask() {
            @Override
            public void run() {
                runOnUiThread(new Runnable() { // run on ui thread
                    @Override
                    public void run() {
                        if (count < drawable.length) {

                            constraintLayout.setBackgroundResource(drawable[count]);
                            count = (count + 1) % drawable.length;
                        }
                    }
                });
            }
        }, 5000, 5000);
    }
    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(BaseUrl)
            .addConverterFactory(GsonConverterFactory.create())
            .build();
    WeatherService service = retrofit.create(WeatherService.class);
    Call<WeatherResponse> call = service.getCurrentWeatherData(lat, lon, AppId);
        call.enqueue(new Callback<WeatherResponse>() {
        @Override
        public void onResponse(@NonNull Call < WeatherResponse > call, @NonNull Response < WeatherResponse > response) {
            if (response.code() == 200) {
                WeatherResponse weatherResponse = response.body();
                assert weatherResponse != null;

                time_zone.setText(response.body().getTimezone());
                time_field.setText(response.body().getCurrent.getDt());
                current_temp.setText(response.body().getCurrent().getTemp()+" ℃");
                current_output.setText(response.body().getCurrent().getWeather().getDescription);
                rise_time.setText(response.body().getCurrent().getSunrise()+" AM");
                set_time.setText(response.body().getCurrent().getSunset()+" PM");
                temp_out.setText(response.body().getCurrent().getTemp()+" ℃");
                Press_out.setText(response.body().getCurrent().getPressure()+" hpa");
                Humid_out.setText(response.body().getCurrent().getHumidity()+" %");
                Ws_out.setText(response.body().getCurrent).getWind_speed()+" Km/h");
                Visi_out.setText(response.body().getCurrent().getVisibility()+" m");
                UV_out.setText(response.body().getCurrent().getUvi());

            }
        }
    }
}

WeatherService.java

public interface WeatherService {
    @GET("data/2.5/weather?")
    Call<WeatherResponse> getCurrentWeatherData(@Query("lat") String lat, @Query("lon") String lon, @Query("APPID") String app_id);
}

I also want to make my fragment class make use of the Activity data, how to do that, please?

from Cannot resolve Symbol "response"