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
Pressure on carotid sinus causes 
Select and explain. 
A. Hyperapnea, B. Tachycardia, C. Reflex bradycardia, D. Dyspnea
C: Reflex bradycardia
Answer: C: Reflex bradycardia 
Explanation: None