<prompt> Which of the following is the most impoant antigen-presenting cell APC for initiating T-cell response against protein antigens?NK cellDendritic cellMacrophageB-lymphocyte  <response>: Naive T cell get activated by antigen presenting cells such as Dendritic cell Macrophage B-lymphocyte Most impoant APC in activating naive T cell is dendritic cell. 