Many stage actors follow a form of method-acting in which the emphasis

My guess is that the answer is A.

The argument is that because method actors have already understood a large part of their characters' psychology prior to even before the rehearsal starts, they are hence very consistent in their performance from the start (rehearsals) to the end (on-stage performance). Option A supports this as it states that the rehearsals add little to the understanding of the character being played, which supports the fact that the method actors probably already knew the character well before the rehearsals.

Many stage actors follow a form of method-acting in which the emphasis is on understanding the psychology of the characters being played and keeping in mind how the characters would have reacted in various situations being enacted. In their pre-rehearsal stage, they go to extremes such as living in situations similar to their hypothetical characters’. Therefore, it is highly likely that such actors are very consistent in their initial performance in rehearsals and their final on-stage performance.

Which of the following, if true, most strengthens the above argument?

A)For an actor, the repetition of a performance in rehearsals adds little to the understanding of the character being played
B)There are some props that are available to actors only on the final day of the show
C)Many famous and highly paid actors are from acting schools that specialize in teaching method-acting.
D)It is very likely for a method-actor playing the role of a beggar to actually dress up and wear torn and soiled clothes throughout the preparation stage to understand the psychology of the character.
E)These days many film actors prefer to do multiple rehearsals with their co-actors to fully understand the character they are portraying.