In the context of Abraham Maslow's hierarchy of needs, which of the following sequences best expresses the order in which these needs must be fulfilled?
a. self-actualization, esteem, love and belongingness, and physiological needs, and safety needs
b. physiological needs, safety needs, love and belongingness, esteem, and self actualization
c. physiological needs, safety needs, esteem, love and belongingness, and selfactualization
d. self-actualization, love and belongingness, safety needs, esteem, and physiological needs