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
True about carotid body tumour is 
Select and explain. 
A. Arises from Schwann cell, B. Causes hypertension, C. Arises from endothelial cell, D. None of the above
D: None of the above
Answer: D: None of the above 
Explanation: None