This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General obstetrics, Subject name: Gynaecology & Obstetrics
[{'content': 'Cochlear function in fetus develops between \nSelect and explain. \nA. 12 to 15 weeks, B. 18 to 20 weeks, C. 22 to 25 weeks, D. 30 to 34 weeks', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Cochlear function develops between 22 and 25 weeks, and its maturation continues for six months after delivery.Reference: William&;s Obstetrics; 24th edition; Chapter 7; Embryogenesis and Fetal Morphological Development', 'role': 'assistant'}]