Rats That Received Electric Shocks Were Unlikely to Develop Ulcers

Multiple Choice

Rats that received electric shocks were unlikely to develop ulcers if the

A) shocks were systematically associated with the delivery of appetizing food.
B) shocks were quickly terminated by the experimenter.
C) rats could control the termination of the shocks.
D) shocks became a routine part of the rats' daily life.