This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General anatomy, Subject name: Anatomy
[{'content': 'Auto immunity in EBV infection is the result of \nSelect and explain. \nA. Molecular mimicry, B. PolyclonalB cell activation, C. Expressing sequestered antigen, D. Antigenic cross reactivity', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ref Robbins 8/e p212; 9/e p216 Infection with Epstein-Barr virus (EBV), the cause of infectious mononucleosis, has been associated with subsequent development of systemic lupus erythematosus and other chronic autoimmune illnesses It is due to PolyclonalB B cell proliferation and activation', 'role': 'assistant'}]