Who propounded the theory of need hierarchy (hierarchy of needs)?

→ In the context of 'Motivation', just before attaining the highest stage of 'Self-Actualization' in Abraham Maslow's 'Hierarchy of Needs Theory', which needs must an individual satisfy? → Under Abraham Maslow's 'Humanistic Theory of Motivation' or 'Hierarchy of Needs', the highest-level need is 'Self-Actualization', wherein an individual is motivated to achieve their highest human potential through the full development and utilization of their abilities, talents, and inner possibilities. Regarding its actual psychological implications and the scientific facilitation of students' creative development, autonomy, and intrinsic motivation in classroom teaching, which of the following psychological statements is most valid and scientifically sound? → In Maslow's Hierarchy of Needs theory of motivation, which is the highest-level need? → According to Abraham Maslow's 'Hierarchy of Needs' theory, if an individual seeks feelings of belongingness, love, and acceptance from friends and family after fulfilling physiological and safety needs, which specific level of the hierarchy does this represent, and under which type of motivation does it fall? → Carl Rogers believed that the self-concept is made up of 3 different parts. Identify the incorrect part. → Who propounded the theory of 'Self-Actualization' motivation? → Who propounded the theory of 'Hierarchy of Needs'?