Detailed Instructions: 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'.
See one example below:
Problem: (A) trying to be a decent parent
(B) remaining Friendly with my racist coworker
Solution: B
Explanation: action (B) is not ethical.

Problem: (A) telling a girl I'd rather invest my time elsewhere
(B) not talking to my grandma anymore
Solution:
B