Classical Conditioning Is Most Likely to Be Involved in Which

Multiple Choice

Classical conditioning is most likely to be involved in which of the involving situations?

A) Brian won't work unless he gets paid.
B) Alex trains his dog to "roll over" by offering food rewards.
C) Rick feels nervous and sick to his stomach when he sees a black cat, but doesn't know why.
D) John loses weight by buying tickets to see his favorite team play whenever he drops five more pounds.