In Cooper V

In Cooper v. Oklahoma (1996) the Supreme Court ruled that ___________.

A) clear and convincing evidence of incompetence was too high a standard of proof
B) clear and convincing evidence of incompetence was the required standard of proof
C) a preponderance of the evidence indicating incompetence was too low a standard of proof
D) a preponderance of the evidence indicating incompetence was the required standard of proof