Step 1: Understanding the behaviorist movement.
Behaviorism is a psychological perspective that focuses on observable behavior, rejecting internal mental states. Prominent behaviorists include B.F. Skinner and J.B. Watson. Sigmund Freud and William James, however, did not belong to behaviorism; Freud was the founder of psychoanalysis, and James was a pioneer in functionalism.
Step 2: Analyzing the options.
- (A) Correct, Sigmund Freud was not a behaviorist. He developed psychoanalysis, which emphasizes the role of the unconscious mind.
- (B) Incorrect, B.F. Skinner is a well-known behaviorist who studied operant conditioning.
- (C) Correct, William James was a philosopher and psychologist associated with functionalism, not behaviorism.
- (D) Incorrect, J.B. Watson is considered one of the founders of behaviorism.
Step 3: Conclusion.
The correct answer is (A), (C).