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': 'Medial rotation of tibia in flexed leg is brought about by- \nSelect and explain. \nA. Popliteus, B. Vastus medialis, C. Quadriceps femoris, D. Adductor magnus', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Medial rotation of flexed knee occurs by\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Popliteus\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Semimembranosus\n-\xa0\xa0\xa0\xa0\xa0\xa0\xa0 Semitendinosus', 'role': 'assistant'}]