Answer: Hierarchy of Needs
Explanation: The hierarchy of needs theory was proposed by Maslow. As per this theory the best way to motivate any individual is to give them a scope of fulfilling the different needs he or she have. Maslow suggetsed that an individual have five basic needs - physiological, safety, social, esteem and self-actualization.
When the initial need satisfy the employee should be given incentive to fulfill the other.