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
The virus which causes aplastic anemia in chronic hemolytic diseases is 
Select and explain. 
A. Adenovirus, B. Hepatitis virus, C. EB virus, D. Parvovirus
D: Parvovirus
Answer: D: Parvovirus 
Explanation: None