Given the task definition, example input & output, solve the new input case.
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
Output: B
action (B) is not ethical.

New input case for you: (A) being upset with my boyfriend's grandma
(B) cutting a compulsive liar out of my life, even though he's sorry
Output:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
A