In this task, you are given two simple actions (associated with "A", "B"). You must identify which action is considered less ethical. Do not generate anything else apart from one of the following characters: 'A', 'B'.
Example: (A) trying to be a decent parent
(B) remaining Friendly with my racist coworker
Example solution: B
Example explanation: action (B) is not ethical.

Problem: (A) not letting my friend know our class was coming up
(B) not wanting my girlfriend to move in with me

Solution: B