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
Large granular cells belong to - 
Select and explain. 
A. Neutrophils, B. Macrophages, C. Eosinophils, D. Lymphocytes
D: Lymphocytes
Answer: D: Lymphocytes 
Explanation: Ans. is 'd' i.e., Lymphocytes o When circulating lymphocytes are classified by their surface markers into T and B cells, about 5-10 percent of cells are found to lack features of either type they are called null cells/Large granular lymphocytes. o Large granular lymphocytes include:# Natural killer cells (N.K. Cells)# Antibody dependent cytotoxic cells/killer cells (ADCC).# Lymphokine activated killer cells (LAK cells).