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: Surgery
Potato tumor is a tumor of 
Select and explain. 
A. Carotid body, B. Sternocleido mastoid muscle, C. Carotid sinus, D. None of the above
A: Carotid body
Answer: A: Carotid body 
Explanation: None