A nurse in an inpatient mental health facility sees a client who is talking while walking alone. The client tells the nurse, "This guy in my head says I am to blame for my own illness." Which of the following responses should the nurse make?

"It is not possible to have someone else in your head talking to you."

"Why do you think he is telling you what to do?"

"Although I can't hear that voice, it must be very upsetting for you."

"Are you sure it wasn't your roommate telling you that?"