Respuesta :

Pavlov became interested in studying reflexes when he saw that the dogs drooled without the proper stimulus. Although no food was in sight, their saliva still dribbled. It turned out that the dogs were reacting to lab coats.May 15, 2001
cpark16

Answer:

A. Pavlov noticed that the dogs salivated at the sight of a lab worker, even though the worker didn't have food to feed them.

Explanation: