You Are by the Side of a Young Male Patient

You are by the side of a young male patient with a history of behavioral problems. Friends called 911 after the patient experienced several violent outbursts this evening. Which finding would cause you to suspect a physical cause for this behavior, as opposed to a behavioral one?

A) Dilated pupils that are sluggish to react
B) Difficulty making eye contact with the EMT
C) Hearing his mother's voice in his head
D) Fear that friends are out to steal his money