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: Ophthalmology
[{'content': 'Development of eye completes at \nSelect and explain. \nA. 3 - 4 weeks period of gestation, B. 9 - 10 weeks period of gestation, C. 12 - 15 weeks period of gestation, D. 20 - 22 weeks period of gestation', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Development of eye begins at 3 weeks period of gestration.\nDevelopment of eye eompletes at 9 - 10\xa0weeks period of gestation.', 'role': 'assistant'}]