B. It helps listeners keep track of which woman is speaking.
Read the following scene from Trifles.
MRS. HALE (abruptly moving toward her.) Mrs. Peters?
MRS. PETERS. Yes Mrs. Hale? (At upstage right door.)
MRS. HALE. Do you think she did it?
MRS. PETERS (in a frightened voice.) Oh, I don’t know.
What is one possible advantage of hearing the characters’ voices as opposed to silently reading the scene?
(just took the test)