Which of the Following Would Illustrate an Auditory Hallucination

Which of the following would illustrate an auditory hallucination?

A) A man believes that his dead wife is talking to him.
B) A woman sees the doorbell indicator light up and hears the bell ring but no one is at the door.
C) A child sees a man standing inside the closet.When the lights are turned on,it is just a dry cleaning bag.
D) A man thinks that a dog is lying curled up on his bed,but when he gets closer,he sees that it is a blanket.