The correct answer is "hierarchy of needs." The hierarchy of needs is a theory proposed by Abraham Maslow, a humanistic psychologist. According to this theory, humans are motivated to fulfill a set of hierarchical needs, starting with basic physiological needs (such as food, water, and shelter) and progressing to higher-level needs, such as safety, social belonging, esteem, and self-actualization. The hierarchy of needs suggests that individuals must meet their lower-level needs before they can progress to higher-level needs. To arrive at this answer, one could have recognized the term "hierarchy of needs" as a unique concept in psychology or conducted a search using keywords related to human motivation and hierarchy.
