<prompt> Delayed hypersensitivity is due to -NeutrophilsMonocytesEosinophilsLymphocytes  <response>: Ans. is d i.e., Lymphocytes Cell mediated Type IV hypersensitivityo It is initiated by activated T-lymphocytes.o It includes:1. Delayed type hypersensitivity - mediated by CD-4 T cells.2. T-cell mediated cytotoxicity - mediated by CD8- T cells. 