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: ENT
[{'content': 'Stapes develops from: \nSelect and explain. \nA. 1st arch, B. 2nd arch, C. 3rd arch, D. 4th arch', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Malleus and incus are derived from mesoderm of 1" arch. Stapes develops from second arch except its footplate and annular ligament which are derived from the otic capsule.', 'role': 'assistant'}]