This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, 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: Polyclonal B cell activation: in this hypothesis, while an antigen generally activates only its corresponding B cell, ceain stimuli non specifically turn on multiple B cell clones. A Such stimuli include virus ( EB virus), enzymes (trypsin), bacteria ( mycoplasma) etc It is type 4 human herpes virus Reference : Anathanarayan & paniker's 9th edition, pg no: 179 <\p>