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
Treatment of presbyopia – 
Select and explain. 
A. LASIK, B. Concave lens, C. Convex lens, D. Radial keratotomy
C: Convex lens
Answer: C: Convex lens 
Explanation: None