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
NGO eye hospital make which stage of NPCB 
Select and explain. 
A. Primary, B. Secondary, C. Teiary, D. Not included
B: Secondary
Answer: B: Secondary 
Explanation: NGO eye hospital comes under secondary stage of NPCB Organization of NPCB Central - Ophthalmic section-NPCB-managed by DGHS MHFW New Delhi | State - State Health Society-State Ophthalmic cell managed by DHS | District - District Health Society-Managed by DPM | Teiary-RIO, Centre for excellence, Medical colleges | Secondary-DH and NGO eye hospital | Primary- Sub-district level hospitals/CHCs/Mobile ophthalmic Units, Upgraded PHCs