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': 'The number of ciliary processes is about: \nSelect and explain. \nA. 20-30, B. 50-60, C. 70-80, D. 90-100', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. 70-80', 'role': 'assistant'}]