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': 'Serratus aerior is supplied by ? \nSelect and explain. \nA. Thoracodorsal nerve, B. Axillary nerve, C. Musculocutaneous nerve, D. Nerve of bel 1', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., Nerve of bell", 'role': 'assistant'}]