Question

multiple choice question
natural killer cells are a type of _.
o monocyte
o lymphocyte
o granulocyte

Explanation:

Natural killer cells are a type of lymphocyte that play a key role in the innate immune system, able to recognize and kill virus - infected cells and tumor cells without prior sensitization. Monocytes are a different type of white blood cell involved in phagocytosis, and granulocytes include neutrophils, eosinophils, and basophils which have different functions in the immune response compared to natural killer cells.

Answer:

B. lymphocyte