<prompt> Epstein Barr virus causes autoimmunity by -Molecular MimicryRelease of Sequestrated AntigenInappropriate Expression of MHC Class II MoleculesPolyclonal B cell Activation  <response>: 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. 