A 46-year-old Caucasian male presented to the hospital in fu…

A 46-year-old Caucasian male presented to the hospital in fulminant liver failure secondary to prolonged alcohol abuse. He received a liver transplantation two days ago from an unrelated donor. His post-operative course has been uncomplicated thus far.   The patient’s clinical status and lab values will be closely monitored for two weeks following his transplant. If he experiences graft rejection, what type of cells will be primarily responsible?