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
Macula lies from disc at a distance of..... from temporal margin of disc. 
Select and explain. 
A. 1 mm, B. 2 mm, C. 3 mm, D. 4 mm
C: 3 mm
Answer: C: 3 mm 
Explanation: 3 mm