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
SAFE strategy is for: 
Select and explain. 
A. Trachoma, B. Diabetic retinopathy, C. Onchocerciasia, D. Glaucoma
A: Trachoma
Answer: A: Trachoma 
Explanation: Trachoma