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
Epstein Barr virus causes autoimmunity by -( 
Select and explain. 
A. Molecular Mimicry, B. Release of Sequestrated Antigen, C. Inappropriate Expression of MHC Class II Molecules, D. Polyclonal B cell Activation
D: Polyclonal B cell Activation
Answer: D: Polyclonal B cell Activation 
Explanation: Ans. is 'd' i.e., Polyclonal B cell Activation . Epstein Barr Virus is a polyclonal activator. Polyclonal activation of B cells leads to the production of antibodies to host cell and viral proteins.