Which of the Following Statements Is True

Which of the following statements is true?

A) In order for punishment to effectively shape behavior,it must be promptly administered,intense,and intermittently applied.
B) As with classical conditioning,learning in operant conditioning is not limited by an animal's evolutionary heritage.
C) Cognitive processes must be taken into account in order to fully understand operant conditioning principles.
D) Partial reinforcement results in the fastest learning,but continuous reinforcement maintains vigorous responding for longer periods of time.