Answer:
The correct answer is B. John B. Watson.
Explanation:
John B. Watson demonstrated through the Little Albert Experiment that the association of a particular behavior with another behavior which doesn't have any relationship, works in human beings.
In this experiment, an unafraid baby was conditioned to fear rats.
This process is called classical conditioning, which plays an important role in the improvement of fears and associations. That's the reason why some phobias are related to classical conditioning. For example, a person who associates leaving the home with the fact of being abused by their parents could develop agoraphobia.
