Which is the correct explanation of the Android test framework?

A.
The Android test framework is based on JUnit4.

B.
In order to create an Activity event unit test, create a test class extending Activity
instrumentationTestCase.

C.
In order to conduct unit tests using the Android test framework, it is necessary to add the
configuration to your AndroidManifest.xml.

D.
A physical device is required to use the Android test framework.

Explanation: