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 cause: 
Select and explain. 
A. Hyperapnea, B. Reflex bradycardia, C. Tachycardi, D. Dyspnea
B: Reflex bradycardia
Answer: B: Reflex bradycardia 
Explanation: B i.e. Reflex bradycardia