This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: NEET Jan 2020, Subject name: Surgery
[{'content': 'Most common pancreatic endocrine neoplasm: \nSelect and explain. \nA. Insulinoma, B. Gastrinoma, C. VIPoma, D. Glucagonoma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: M/C NET of Pancreases - Non-Functional (PPOMA) M/C functional NET of Pancreas -Insulinoma MC Functional Enteropancreatic NET in MEN 1 - Gastrinoma > Insulinoma M/C functional & Malignant NET of Pancreas - Gastrinoma IOC for localization of NET - SRS (Somatostatin receptor Scintigraphy)', 'role': 'assistant'}]