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
Hepatitis A virus is: 
Select and explain. 
A. Flavivirus, B. Calcivirus, C. Enterovirus, D. Defective virus
C: Enterovirus
Answer: C: Enterovirus 
Explanation: Ans. c. Enterovirus