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
Most common pancreatic neoplasm in MEN I - 
Select and explain. 
A. Gastrinoma, B. Insulinoma, C. Somatostatinoma, D. Glucagonoma
A: Gastrinoma
Answer: A: Gastrinoma 
Explanation: None