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
Development of eye completes at 
Select and explain. 
A. 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
B: 9 - 10 weeks period of gestation
Answer: B: 9 - 10 weeks period of gestation 
Explanation: Development of eye begins at 3 weeks period of gestration.
Development of eye eompletes at 9 - 10 weeks period of gestation.