अभिप्रेरणा का मूलप्रवृत्ति सिद्धांत (Instinct theory of motivation) मुख्य रूप से किससे संबंधित है?

The Drive Reduction Theory of motivation is most closely associated with:

Drive Reduction Theory of motivation posits that motivation primarily arises from:

The Two-Factor Theory of motivation (Motivator-Hygiene Theory) was developed by: