Final answer:
McClelland's three learned needs include achievement, power, and affiliation. These motivational drivers are distinct from Maslow's hierarchy of needs and Erikson's psychosocial stages.
Step-by-step explanation:
McClelland's three learned needs are achievement, power, and affiliation. These are key concepts in McClelland's theory of motivation, which suggests that our needs for achievement, power, and affiliation drive our behavior in various settings, including the workplace. According to McClelland, the need for achievement drives accomplishment and performance, the need for power motivates us to seek influence or control over others, and the need for affiliation encourages us to form positive relationships and interactions with others.
The correct answer to the question is: a. Achievement, power, and affiliation. These needs are distinct from Maslow's hierarchy of needs, which includes physiological, safety, love/belonging, esteem, and self-actualization levels, as well as the psychosocial stages of development proposed by Erikson, and other motivational theories such as self-efficacy and the need to belong.