Every Time a Boy Visited His Grandfather, He Would Pass

Multiple Choice

Every time a boy visited his grandfather, he would pass a house with a large dog in the yard that would bark and scare the boy. Years later, the boy becomes anxious whenever he visits his grandfather, even though the dog is no longer there. The boy learned to become anxious in this situation through which process?

A) Classical conditioning
B) Operant conditioning
C) Observational learning
D) Punishment