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': 'Nerve supply of pronator teres ? \nSelect and explain. \nA. Ulnar nerve, B. Median nerve, C. Posterior interosseous, D. Radial nerve', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Median nerve', 'role': 'assistant'}]