Question

what twentieth century scientist revolutionized the study of psychology?
○ albert einstein
○ sigmund freud
○ alexander fleming
○ philo farnsworth

Explanation:

Sigmund Freud developed psychoanalysis, a major school of thought in psychology. His theories on the unconscious mind, psychosexual development, and defense - mechanisms had a profound impact on the field in the 20th century. Einstein was a physicist, Fleming discovered penicillin, and Farnsworth was involved in the development of television.

Answer:

B. Sigmund Freud