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) telling my brother his girlfriend is not allowed at our house anymore
(B) not being smart enough for my group partner
Output:
A