This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: G.I.T, Subject name: Pathology
[{'content': 'Hepatitis virus that causes chronic liver disease is? \nSelect and explain. \nA. Hepatitis A, B. Hepatitis B, C. Hepatitis C, D. Hepatitis D', 'role': 'user'}, {'content': 'Answer: C \nExplanation: HCV also is a major cause of liver disease. The worldwide carrier rate is estimated at 175 million persons (a 3% prevalence rate, ranging widely from 0.1% to 12%, depending on the country). Persistent chronic infection exists in 3 to 4 million persons in the United States ROBBINS TEXT BOOK OF PATHOLOGY 9TH EDITION PG NO.618', 'role': 'assistant'}]