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': 'Most common type of mesentric cyst is \nSelect and explain. \nA. Entergenous cyst, B. Chelolymphalic cyst, C. O mental cyst, D. Urogenital cyst', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Chelolymphalic cyst :\n\nIt is commonest type of mesentric cyst.\nIt has congenital misplaced lymphatic tissue.', 'role': 'assistant'}]