An Animal Subject Is Removed from Its Home Cage in a Colony

Multiple Choice

An animal subject is removed from its home cage in a colony room and placed in a black box in a training room. Half of the floor of the box is a metal grid and half is made of solid wood. In which of the following situations would you expect the least amount of conditioned inhibition to develop?

A) The subject receives light + shock pairings on the metal grid floor, and tone + no shock on the wood floor.
B) The subject receives shock pairings on the metal grid floor, and tone + no shock on the wood floor.
C) The subject receives light + shock pairings on the metal grid floor, and receives tone + no shock in its holding cage in the training room.
D) The subject receives light + shock pairings on the metal grid floor, and tone + no shock in its home cage in the colony room.