At one time, psychologists were primarily involved in evaluating criminal defendants for competency to stand trial. Now psychologists ____

a. primarily do evaluations for competency cases that involve the new "guilty, but mentally ill" defense
b. are forbidden from doing such evaluations
c. have expanded roles including giving expert opinions on organic brain functioning, traumatic injury, suicide, and deprogramming activities
d. evaluate civil defendants for competency to stand trial

C