होमियोस्टैसिस (समस्थिति) सिद्धांत यह सुझाव देता है कि प्रेरणा मुख्य रूप से उत्पन्न होती है:

Motivation that originates from within an individual and is driven by personal satisfaction, mastery, or the inherent pleasure of the activity itself is classified as ______.

Which of the following correct sequence represents the human sexual response cycle proposed by Masters and Johnson?