Bryn Adopted Her Cat,Minnie,from the Local Shelter

Bryn adopted her cat,Minnie,from the local shelter.She feeds Minnie dry food,but the previous owner fed her only canned food.Every time Bryn opens her refrigerator,her new cat comes running.Bryn never gives Minnie food after she opens the refrigerator,however,so eventually the cat stops showing up.The cat's learned response to the sound of the refrigerator being opened has been

A) generalized.
B) extinguished.
C) habituated.
D) recovered spontaneously.