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: Anatomy
[{'content': 'Boundaries of Popliteal fossa \nSelect and explain. \nA. Biceps femoris, B. Both heads of Gastrocnemius, C. Adductor magnus, D. All', 'role': 'user'}, {'content': 'Answer: D \nExplanation: A. i.e. Biceps femoris; B. i.e. Both heads of gastrocnemius; C. i.e. Adductor magnus', 'role': 'assistant'}]