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
Epidemics of conjunctivitis are known to occur with: 
Select and explain. 
A. Bacterial infections, B. Viral infections, C. None of the above, D. Both of the above
D: Both of the above
Answer: D: Both of the above 
Explanation: Ans. Both of the above