This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunology, Subject name: Microbiology
Delayed hypersensitivity involves - 
Select and explain. 
A. Neutrophils, B. Monocytes, C. Eosinophils, D. Lymphocytes
D: Lymphocytes
Answer: D: Lymphocytes 
Explanation: Delayed or cell-mediated hypersensitivity is a cell-mediated response. The antigen activates specifically ssensitizedCD4 & CD8 T lymphocytes leading to the secretion of lymphokines and phagocyte accumulation. Reference:nathanarayan & paniker's 9th edition, pg no: 162 <\p>