If a Host Cell Expresses Both MHC Class I Molecules

Multiple Choice

If a host cell expresses both MHC class I molecules and ligands that bind activating receptors on NK cells, what is the outcome for the host cell?

A) The host cell will not be killed because the NK cell needs two different activating signals to kill a host cell.
B) The host cell will not be killed because the MHC class I molecules cause inhibition that overrides the activating signals.
C) The host cell will be killed because the NK cell does not bind MHC class I molecules and the activating signal causes cell death.
D) The host cell will be killed because the activating signal overrides the inhibitory signal caused by the MHC class I molecule binding.