Which of the Following Is True with Regard to John

Multiple Choice

Which of the following is true with regard to John

A) He initiated the behaviorist movement in the United States.
B) He developed psychoanalysis in the early 1900s.
C) He is known for his discovery of classical conditioning.
D) He formulated a systematic approach to operant conditioning, specifying the types and nature of reinforcement as a way to modify behavior.