Answer: C) It does not allow listeners to review or reread what each character has said.
Explanation: In the given scene from "Trifles" we can see a conversation between Mrs. Hale and the County Attorney. If we could hear the character's voices as opposed to silently reading the scene, we could interpret the characters to their tone, associate a voice with each of the characters and we also could keep track of which character is speaking. The only disadvantage would be that we couldn't review or reread what each character has said, so the correct answer is option C.