Why Was the Decision in Barefoot V

Why was the decision in Barefoot v. Estelle important for forensic psychology?

A) It permitted psychologists to testify in insanity cases.
B) It encouraged forensic psychologists to perform risk assessments.
C) It was the first case in which an amicus curiae brief was ever submitted.
D) It accepted the notion that predictions of behavior necessitate a deterministic view of human behavior.