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
Conjugate fixation reflex is established by the age of: 
Select and explain. 
A. 3 weeks, B. 6 weeks, C. 3 months, D. 6 months
B: 6 weeks
Answer: B: 6 weeks 
Explanation: Ans. 6 weeks