8) Which of the following will induce NK cells to initiate action against virus 1
infected (VI) cells? i) A fragment of antig

8) Which of the following will induce NK cells to initiate action against virus 1
infected (VI) cells? i) A fragment of antigen display by MHC-I molecules in
the surface of VI cells. ii) Detection of PAMPs bound to PRPs in the NK cells.
iii) Decrease level of MHC-I molecules in the surface of NK cells. iv)
Decrease level of MHC-II in the surface of VI cells.
i and iv
jij and iv
ii and iv
only iv​