This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
[{'content': 'Co-infection is essential for disease presentation is \nSelect and explain. \nA. Hepatitis A, B. Hepatitis B, C. Non A Non B Hepatitis, D. Delta Hepatitis', 'role': 'user'}, {'content': 'Answer: D \nExplanation: majority of patients with HDV superinfection evolve to chronic HDV infection and hepatitis. Two major patterns of infection have been described: coinfection with HBV and HDV, or superinfection with HDV of a person chronically infected with HBV Ref Harrison20th edition pg 980', 'role': 'assistant'}]