You Are Trying to Determine Whether Marsha Is Really Hypnotized

You are trying to determine whether Marsha is really hypnotized or just pretending. You tell her that her sister is sitting in the chair in front of her, and she claims to see her sister. Now her real sister comes into the room. If Marsha is really hypnotized, what will she say when you ask about the person who just entered the room?

A) She sees no one except her sister in the chair in front of her.
B) She sees her sister in two places at once.
C) The person who just entered the room must be someone else.
D) She no longer sees anything at all.