The Observation That Pigeons Will Peck at a Key Light

Multiple Choice

The observation that pigeons will peck at a key light associated with the presentation of food even when doing so cancels the delivery of reinforcement is seen as evidence that:

A) Key pecking is an instinctive behavior
B) Turning off a light is a reinforcer for pigeons
C) Pecking at the key light is a respondent behavior
D) The illuminated key is an aversive stimulus and pecking is a way to remove the aversive