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: Pharmacology
Drug of choice for Insulinoma is 
Select and explain. 
A. Glucagon, B. Sodium nitroprusside, C. Diazoxide, D. Mecasermin
C: Diazoxide
Answer: C: Diazoxide 
Explanation: Diazoxide is K+ channel opener, which is drug of choice for Insulinoma. It was used for hypertensive emergency but can lead to severe hypotension.