You will be given a definition of a task first, then some input of the task.
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'.

(A) not understanding why a friend is mad at me for hooking up with her friend
(B) not wanting to have much of a relationship with my mom's side of the family
Output:
B