This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neoplasia, Subject name: Pathology
[{'content': 'Lymphoma is caused by all of the following viruses except - \nSelect and explain. \nA. HIV, B. EBV, C. HSV, D. HHV8', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ans. is 'c' i.e., HSV * The number of viruses associated with lymphoma has increased over the last 20 years, and includes the Epstein- Barr virus (EBV), human T-cell lymphotropic virus 1 (HTLV1), human immuno-deficiency virus (HIV1 and 2) and human herpesvirus 8 (HHV8).* Some cause lymphoma by direct oncogenesis, for example EBV and Burkitt's lymphoma. Others cause lymphoma in immunosuppressed patients, for example HHV8 in primary effusion lymphoma and Castleman's syndrome.* Lymphomas in HIV patients arise directly due to HIV action on lymphocytes and secondary to AIDS, with up to 50% of these lymphomas associated with EBV.* Hepatitis C virus (HCV) has only recently been recognized as a potential cause of Bcell lymphoma", 'role': 'assistant'}]