This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Virology, Subject name: Microbiology
Age group affected by Hepatitis 'A' virus - 
Select and explain. 
A. Children, B. Adult, C. Old age, D. Any age
A: Children
Answer: A: Children 
Explanation: HAV affecting mainly children REF:<\p> ANATHANARAYANAN MICROBIOLOGY NINTH EDITION PAGE.541