In operant conditioning, the concept of contingency is exemplified by an "if A, then B" relationship in which A and B, respectively, represent A. stimulus, response
B. behavior, consequence
C. stimulus, consequence
D. behavior, stimulus
E. stimulus, stimulus

B. behavior, consequence

Explanation:

Operant conditioning is simply refered to as a learning method whereby for a behavior that is done by an individual, there is a rewards and punishments for behavior.

In operant conditioning, the concept of contingency is exemplified by an "if A, then B" relationship in which A and B, respectively, represent behavior, and consequence.