Final answer:
c) Abraham MaslowAbraham Maslow believed that the basic needs of humans must be met before higher-level functioning like self-actualization can occur. He proposed the hierarchy of needs, which is a foundational concept in humanistic psychology.
Step-by-step explanation:
The person who believed that the basic needs of humans must be met before upper-level functioning can occur was Abraham Maslow. Abraham Maslow is most well-known for proposing his hierarchy of needs. According to Maslow's hierarchy of needs, lower-level needs such as physiological needs and safety must be satisfied before individuals can attend to higher-level needs like belongingness, esteem, and eventually self-actualization.
Maslow's theory plays a significant role in the humanistic approach to psychology, emphasizing the positive aspects of human nature and the potential for personal growth and development. His work contributed to our understanding of motivation and the progression toward achieving one's full potential.Abraham Maslow believed that the basic needs of humans must be met before upper-level functioning can occur. Maslow proposed a hierarchy of needs, where basic physiological needs such as food, water, and shelter must be satisfied first, followed by needs for safety, love and belongingness, and self-esteem. Only when these lower-level needs are met, can individuals strive for self-actualization, which is the realization of one's full potential.