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
Under the WHO"Vision 2020'program, the"SAFE" strategy is adopted for which of the following diseases: 
Select and explain. 
A. Trachoma, B. Glaucoma, C. Diabetic retinopathy, D. Onchocerciasis.
A: Trachoma
Answer: A: Trachoma 
Explanation: Ans. Trachoma