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': 'Which of following is derived from otic placode? \nSelect and explain. \nA. Mastoid, B. Tympanic antrum, C. Ear ossicles, D. Cochlea', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is'd'i.e., CochleaRef: Langmann' 70th/e p. 92,403Otic placode form otic vesicle which in turn divides into :-Ventral component that gives rise to the saccule and cochlear duct.Dorsal component that forms the utricle, semicircular canals, and endolymphatic duct.", 'role': 'assistant'}]