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': 'The "Mesenteric cyst" \nSelect and explain. \nA. Moves parallel to the mysentery, B. Moves perpendicular to the mesentery, C. Is secondary tumour, D. Is fixed and immobile', 'role': 'user'}, {'content': "Answer: B \nExplanation: Ans. is 'b' i.e., Moves perpendicular to the mesentery", 'role': 'assistant'}]