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
Macular differentiation occurs at the age of 
Select and explain. 
A. 2 - 4 months, B. 6 - 8  months, C. 4 - 6 months, D. 5 - 7 years
C: 4 - 6 months
Answer: C: 4 - 6 months 
Explanation: Macular differentiation occurs at the age of 4 - 6 months.