<prompt> Regarding NK cells, false statement is -it is activated by IL-2Expresses CD 3 receptorIt is a variant of large lymphocyteThere is antibody induced proliferation of NK cells  <response>: NK cells possess spontaneous cytotoxicity against target cells and is not antibody dependent or MHC restricted. Ref.: Textbook of microbiology, Ananthanarayan and Panicker - page no. 137 