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
Most common hepatotropic virus causing increased chronic carrier state is: 
Select and explain. 
A. HEV, B. HAV, C. HBV, D. HCV
D: HCV
Answer: D: HCV 
Explanation: Ans. (d) HCV