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: Medicine
Condition associated with obesity are all except - 
Select and explain. 
A. Pheochromocytoma, B. Hypothyroidism, C. Insulinoma, D. Cushing's syndrome
A: Pheochromocytoma
Answer: A: Pheochromocytoma 
Explanation: None