When an app “logs out” of a back end system the developer should also ensure:

A.
app jumps to device home screen, clearing the data from the previous session.

B.
GUI components displaying data while logged in are destroyed as Android does not do this.

C.
app switches back to login screen forcing the user to re-login to view the data.

D.
app maintains the state of the session ID in the key chain.

Explanation: