Marianne is a professional chess player who hums audibly while playing

This one isn't too tough, I daresay. We have a person claiming that there humming is involuntary. That she should not be held responsible for involuntary actions. That's pretty much it. All we have to do is find some principle that supports this.

Marianne is a professional chess player who hums audibly while playing her matches, thereby distracting her opponents. When ordered by chess officials to cease humming or else be disqualified from professional chess, Marianne protested the order. She argued that since she was unaware of her humming, her humming was involuntary and that therefore she should not be held responsible for it.

Which one of the following principles, if valid, most helps to support Marianne’s argument against the order?


(A) Chess players who hum audibly while playing their matches should not protest if their opponents also hum.
Doesn't support M's claim. She is saying it's involuntary and therefore she should not be held responsible.

(B) Of a player’s actions, only those that are voluntary should be used as justification for disqualifying that player from professional chess.
Yep, fits well with that we're looking for. If only voluntary actions should be used to disqualify, then the involuntary action (humming) cannot be used.

(C) A person should be held responsible for those involuntary actions that serve that person’s interests.
This would go against M's argument if anything.

(D) Types of behavior that are not considered voluntary in everyday circumstances should be considered voluntary if they occur in the context of a professional chess match.
This effectively increases the types of behavior that are considered voluntary in the context of a match. This would harm M's argument, since an official could say "Well humming is considered voluntary when the match starts"

(E) Chess players should be disqualified from professional chess matches if they regularly attempt to distract their opponents.
I could see this one tripping people up. But (B) is a much better choice. Remember, though, M is saying her action is involuntary, so her humming cannot be really considered a regular ATTEMPT - something which, I daresay, requires conscious intent behind it.

Kudos would be nice!