When Interviewing an Acutely Confused Patient with a Head Injury

When interviewing an acutely confused patient with a head injury, which of these questions will provide the most useful information?

A) "Have you ever been hospitalized for a neurologic problem?"
B) "Do you have any pain at the present time?"
C) "What have you had to eat in the last 24 hours?"
D) "Can you describe you usual pattern for coping with injury?"