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
[{'content': 'All of the following are are features of VIPoma, except: \nSelect and explain. \nA. Hypokalemia, B. Hypochlorhydria, C. Flushing, D. Hypocalcemia', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The principal symptoms are large-volume diarrhea severe enough to cause hypokalemia, dehydration, hypochlorhydria, and flushing. Patients frequently have hyperglycemia and hypercalcemia. Ref: Harrisons Principles of Internal Medicine, 18th Edition, Page 3068.', 'role': 'assistant'}]