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
Octerotide is not used in: 
Select and explain. 
A. Varices, B. Refractory diarrhoea in AIDS, C. Carcinoid, D. Glucagonoma
D: Glucagonoma
Answer: D: Glucagonoma 
Explanation: Glucagonoma