In the Context of Maslow's Hierarchy of Needs Theory, Which

In the context of Maslow's hierarchy of needs theory, which of the following is true?

A) It is based on the belief that psychological needs are not as important as physical needs for achieving self-actualization.
B) It is based on the belief that physical needs are not as important as psychological needs for achieving self-actualization.
C) It is based on the belief that higher-order needs must be fulfilled before lower-order needs are fulfilled.
D) It is based on the belief that individuals who are preoccupied with meeting deficit needs cannot achieve self-actualization.