A. Incorrect.
@Rule is not the test method annotation, and Espresso actions use perform(), not do().

B. Correct.
Espresso UI tests use @Test methods, perform() for actions, and check(matches(...)) for assertions.

C. Incorrect.
compare() is not the normal Espresso assertion API.

D. Incorrect.
@RunWith can configure the runner, but it does not replace test actions and assertions.

A. Incorrect.
A ViewModel prepares and exposes UI data, but should not directly manage every data source.

B. Incorrect.
Room is a local persistence layer, not the coordinator of local and remote sources.

C. Incorrect.
Activities and fragments should focus on UI concerns.

D. Correct.
A Repository abstracts and coordinates data access from local and remote sources.

A. Incorrect.
That describes small unit tests.

B. Incorrect.
That describes large end-to-end tests.

C. Correct.
Medium tests are integration tests focused on component or module interactions.

D. Incorrect.
Crash reports are not a test category.

A. Incorrect.
Selectors choose drawables by state, but a progress drawable commonly layers progress and background.

B. Correct.
Horizontal ProgressBar drawables are often layer-list resources with background/progress layers.

C. Incorrect.
ImageView is a view, not the drawable resource structure.

D. Incorrect.
RecyclerView layouts are unrelated.

A. Incorrect.
Android is not Windows-based.

B. Incorrect.
Android is based on Linux and includes open source components.

C. Correct.
Android is an open source, Linux-based software stack for many device types.

D. Incorrect.
Android supports many device categories and form factors.

A. Incorrect.
@RunWith configures a test runner.

B. Incorrect.
@Rule configures test rules.

C. Correct.
JUnit 4 test methods are annotated with @Test.

D. Incorrect.
@LargeTest classifies test size but does not itself define a basic test method.

A. Correct.
Directional-pad center clicks are commonly delivered as KEYCODE_DPAD_CENTER.

B. Incorrect.
BUTTON_START is for game/controller start buttons.

C. Incorrect.
KEYCODE_CALL is not the standard directional click.

D. Incorrect.
BUTTON_SELECT is not the usual DPAD center event for most devices.

A. Incorrect.
Custom filters are separate from this default selected-application filter.

B. Incorrect.
No filters would show all messages.

C. Correct.
The selected-application filter shows messages for the active app process.

D. Incorrect.
System server logs are not the purpose of this option.

A. Incorrect.
Notification channels use importance, not setPriority().

B. Correct.
Android 8.0+ notification behavior is controlled through NotificationChannel importance.

C. Incorrect.
Importance belongs to the channel API.

D. Incorrect.
Snackbar duration is unrelated to notifications.

A. Incorrect.
PagedList is designed around immutable loaded content snapshots.

B. Correct.
PagedList can load additional content, but loaded items are content-immutable.

C. Incorrect.
There is no random mutation behavior.

D. Incorrect.
PagedList exists to load paged content.