Alex's Grandmother Always Gave Him Candy When He Saw Her

Multiple Choice

Alex's grandmother always gave him candy when he saw her. Over time, he became excited and happy whenever he saw her. Years later, he experiences the same feeling when he smells her perfume in a store. This kind of conditioning is called

A) higher-order conditioning.
B) avoidance learning.
C) operant conditioning.
D) aversive conditioning.