This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Physiology
The receptor response decline despite of the continued presence of a stimulus is know as: 
Select and explain. 
A. Accomodation, B. Adaptation, C. Refractoriness, D. Electrotonus
B: Adaptation
Answer: B: Adaptation 
Explanation: Adaptation: When a maintained stimulus of constant strength is applied to a receptor the frequency of the action potentials in its sensory nerve declines over time. This phenomenon is known as adaptation or desensitization. Ref: Ganong's Review of Medical Physiology, 21st Edition, Page 125