Loud noise can damage cells and membranes in the cochlea. Listening to loud noise for a long time can overwork hair cells in the ear, which can cause these cells to die. The hearing loss progresses as long as the exposure continues. Harmful effects might continue even after noise exposure has stopped.
Avoid situations where you might be pressured to try something you wouldn’t want to or not comfortable with doing.
A or B are both the best options in this case, but B is the best option overall because if he is interested in an activity, then he will have more motivation.