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: Microbiology
Pharyngoconjuctival fever is caused by: 
Select and explain. 
A. Parainfluenza virus, B. H. influenza, C. Cox sackie virus, D. Adenovirus
D: Adenovirus
Answer: D: Adenovirus 
Explanation: Adenovirus