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: Surgery
[{'content': 'Following fistulous conditions give rise to maximum fluid and electrolyte imbalance ? \nSelect and explain. \nA. Distal ileal, B. Gastric, C. Duodenal, D. Sigmoid', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., Duodenal", 'role': 'assistant'}]