Classical conditioning involves while operant conditioning involves

Classical conditioning involves behavior that is elicited by a stimulus while operant conditioning involves behavior that is emitted by an organism. Classical conditioning is a learning method wherein a potent stimulus is being paired with a neutral stimulus. It is when you relate two stimulus that are different. Operant conditioning, on the other hand, is learning that involves behavior being controlled by the consequences with it. 

A, c, and d are the answers