Which Scenario Illustrates the Concept of Instinctive Drift

Multiple Choice

Which scenario illustrates the concept of instinctive drift?

A) A cat that has been trained to do a "handstand" on its two front legs always meows while performing the trick.
B) A raccoon is trained to "do laundry" by picking up a cloth out of a basket and then "washing" it in a small tub of water.
C) A dog that has been trained to bark on command for a treat licks the trainer instead of barking in response to the "bark" command.
D) A pet canary sings whenever its owner places a mirror inside the cage.