10. Stage performances are judged to be realistic to the degree that actors reproduce on stage the behaviors generally associated by audiences with the emotional states of the characters portrayed. Traditional actors imitate those behaviors, whereas Method actors, through recollection of personal experience, actually experience the same emotions that their characters are meant to be experiencing. Audiences will therefore judge the performances of Method actors to be more realistic than the performances of traditional actors.

Which one of the following is an assumption on which the argument depends?

(A) Performances based on an actor’s own experience of emotional states are more likely to affect an audience’s emotions than are performances based on imitations of the behaviors generally associated with those emotional states.
(B) The behavior that results when a Method actor feels a certain emotion will conform to the behavior that is generally associated by audiences with that emotion.
(C) Realism is an essential criterion for evaluating the performances of both traditional actors and Method actors.
(D) Traditional actors do not aim to produce performances that are realistic representations of a character’s emotional states.
(E) In order to portray a character, a Method actor need not have had experiences identical to those of the character portrayed.

A for me also

(B) for me.

Can anyone explain why A is wrong?

The argument says that a performance is judge on its realism...which is based on how close the actor's emotions/behaviour are to what the audience would feel in the same situation.

B talks about this ...where as A talks about AFFECTING the audience's emotion ...which is different