Step 1: Recall Hepatitis virus classification.
- Hepatitis A virus → Picornaviridae (RNA virus).
- Hepatitis E virus → Hepeviridae.
- Hepatitis B virus → Hepadnaviridae (DNA virus).
- Hepatitis D virus → Defective RNA virus, depends on Hepatitis B.
Step 2: Identify correct family.
The Picornaviridae family includes enteroviruses (poliovirus, rhinovirus, HAV). Thus, Hepatitis A virus belongs to this family.
Step 3: Exclude wrong answers.
B, C, D belong to different virus families.
Step 4: Conclusion.
Correct answer is Hepatitis A Virus.