Which of the Following Is NOT a Valid Criticism of Maslow's

Which of the following is NOT a valid criticism of Maslow's theory of motivation?

A) Maslow's initial studies on self-actualization were based on limited samples and often relied on the life stories of acquaintances and biographies and autobiographies of historical figures he selected.
B) The concept of self-actualization is vague and almost impossible to define in such a way that it could be empirically measured or tested.
C) Despite the claim that self-actualization is an inborn motivational goal, most people do not experience or achieve self-actualization.
D) Because of Maslow's influence, psychology was encouraged to focus on the motivation and development of psychologically healthy people.