This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Community Ophthalmology, Subject name: Ophthalmology
Apex national institute of ophthalmology is 
Select and explain. 
A. Advance eye care PGI Chandigarh, B. RIO, C. Dr. R P Centre for Ophthalmic Sciences , Delhi, D. Shankara Netralaya , Chennai
C: Dr. R P Centre for Ophthalmic Sciences , Delhi
Answer: C: Dr. R P Centre for Ophthalmic Sciences , Delhi 
Explanation: Dr RP Centre for Ophthalmic Sciences, New Delhi has been designated as the apex national institute of ophthalmology.