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
Which hepatitis virus is notorious for causing chronic hepatitis evolving to cirrhosis - 
Select and explain. 
A. HCV, B. HBV, C. HEV, D. HAV
A: HCV
Answer: A: HCV 
Explanation: Ans. is 'a' i.e., HCV