Charles Darwin's would be the answer you're looking for.
Answer:
b
Explanation:
not 100 percent sure but should be bbb
Answer:
Classical conditioning.
Explanation:
Classical conditioning first studied and illustrated by Ivan Pavlov(Russian Psychologist) that arises learning when a conditioned stimulus is combined with an unconditioned stimulus. <em>It exemplifies the learning through association which is an outcome of pairing or linking of two stimuli in order to produce a new learned response in an individual. The given passage reflects this process(classical conditioning) as Juan affiliates the song to his childhood days that results in a warm emotional response from him. Thus, it displays classical conditioning. </em>