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: Unknown
[{'content': 'Gold standard flap for breast reconstruction - \nSelect and explain. \nA. TRAM flap, B. LD flap, C. DIEP flap, D. Silicone gel implant', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'C' i.e., DIEP flap", 'role': 'assistant'}]