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': 'Summit of medial longitudinal arch \nSelect and explain. \nA. Calcaneum, B. Talus, C. Navicular, D. Medial Cuneiform', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Summit of medial longitudinal arch is Talus.\nSummit of lateral longitudinal arch is Calcaneum.', 'role': 'assistant'}]