Bryony was very close to her father; she claims that he always made her feel safe. Bryony's father always wore "Stetson" cologne. Today every time she smells the scent of "Stetson" cologne she develops a pleasant feeling of warmth and comfort. The learning process that could best account for Bryony's pleasant feelings is

A) operant conditioning.
B) observational learning.
C) delayed reinforcement.
D) classical conditioning.

Classical Conditioning

A learning process that occurs through associations between an environmental stimulus and a naturally occurring stimulus.

Observational Learning

A learning process through watching the actions of others and the outcomes of those actions, without direct instruction or experience.

Operant Conditioning

A method of learning that employs rewards and punishments for behavior, emphasizing the modification of behavior through reinforcement.