This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Gram-Positive Infections - Corynebacterial Infections, Subject name: Microbiology
True about hepatitis A virus: 
Select and explain. 
A. Causes cirrhosis, B. Helps HDV replication, C. Common cause of hepatitis, D. Causes chronic hepatitis
C: Common cause of hepatitis
Answer: C: Common cause of hepatitis 
Explanation: Ans. is 'c' i.e., Common cause of hepatitis in children (Ref: Ananthanarayan, 8th/e, p. 537)* HAV the most common cause of hepatitis in children.* HAV does not cause chronic hepatitis or cirrhosis.* HBV (no HAV) helps in HDV replication.