What is needed to make a network request with Retrofit?

To successfully make a network request using Retrofit, several crucial steps must be followed, which collectively ensure smooth operation and functionality of the networking capabilities in your Android application.

Firstly, including the necessary Android permission to access the internet is essential. Without the line android.permission.INTERNET in the app's manifest file, the application will not have the permission to make any network calls. This is a fundamental requirement for any application that interacts with the internet.

Secondly, the Retrofit library must be added to your project as a Gradle dependency. This step is crucial since Retrofit is not included by default in Android. Including the dependency ensures that you have all the necessary classes and methods provided by the Retrofit library to facilitate the creation and management of network requests.

Lastly, setting a base URL in the Retrofit.Builder object is indispensable, as it defines the endpoint for the network requests. This URL forms the foundation for all subsequent API calls made through the Retrofit service, ensuring that each request is sent to the correct server address.

Given that all these components are necessary to successfully implement networking with Retrofit in an Android application, the correct response encompasses all these elements.