As Described in the Opening Vignette, John Garcia Found That

As described in the opening vignette, John Garcia found that:

A) if a wolf gets sick just once after eating a sheep, that wolf will avoid eating sheep in the future.
B) sheep can be taught to attack and eat wolves.
C) if a wolf gets sick just once after eating a sheep, that wolf will continue to attack and eat sheep.
D) sheep can be taught to avoid attacks by wolves.