Components of Innate immunity that are active against viral cells includes -: (A) NK cells, (B) Cytotoxic cells, (C) B-cell, (D) Memory B cell
Answer is A. A class of lymphocytes called natural killer cells or NK cells are impoant in nonspecific defense against viral infections and tumors. They selectively kill virus-infected cells and tumors cells. - they are activated by interferons. Reference : Anathanarayan & paniker's 9th edition, pg no:81 <\p>