Two Groups of Well-Trained Rats Were Placed on Extinction

Two groups of well-trained rats were placed on extinction.One group was punished with a slap on the paw for each bar press, while the other group was not.The experimenters found that bar pressing

A) reached extinction quicker for the rats whose paws were slapped.
B) reached extinction quicker for the rats whose paws were not slapped.
C) temporarily slowed for the rats whose paws were slapped with no difference in extinction time.
D) remained high for both groups with extinction never being reached.