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
Chemoreceptors are located in which area? 
Select and explain. 
A. Medulla, B. Arch of aoa, C. Bifurcation of carotid aery, D. All of the above
D: All of the above
Answer: D: All of the above 
Explanation: Ans. is'd'i.e., AII of the aboveCentral chemoreceptors - Ventral Surface Of Medulla.Peripheral chemoreceptors - At bifurcation of common carotid aery (carotid body) and arch of aoa (aoic bodies)