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
The eye condition for which the World bank assistance was provided to the National Programme for Control of Blindness: March 2013 
Select and explain. 
A. Onchocerciaisis, B. Cataract, C. Trachoma, D. Vitamin A deficiency
B: Cataract
Answer: B: Cataract 
Explanation: Ans. B i.e. Cataract