Which of the Following Statements About Extinction Following Intermittent Reinforcement

Which of the following statements about extinction following intermittent reinforcement is true?

A) Behaviors that were intermittently reinforced never extinguish.
B) Extinction following intermittent reinforcement is slower than following continuous reinforcement.
C) Extinction following intermittent reinforcement is more rapid than following continuous reinforcement.
D) Behaviors reinforced on a intermittent reinforcement schedule will spontaneously extinguish unless occasional periods of continuous reinforcement are used.