Ted seems to forget things more often now than in the past. He is worried, so he consults a physician. During the interview, Ted wonders if he might be suffering dissociative amnesia

Which of the following questions would prove
most useful in assessing the cause of Ted's complaint?
a) "Are you having difficulty sleeping?"
b) "Have you had your eyes checked lately?"
c) "Did you experience a head injury recently?"
d) "Do you find that you spend more time daydreaming?"

c