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': 'Macula lies from disc at a distance of ..... from temporal margin of disc. \nSelect and explain. \nA. 0.3 mm, B. 33 mm, C. 3 mm, D. 0.03 mm', 'role': 'user'}, {'content': 'Answer: C \nExplanation: 3 mm', 'role': 'assistant'}]