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
Difference between natural killer and cytotoxic cells is - 
Select and explain. 
A. Interferon decreases natural killer activity, B. NK cell has CD4, C. Cytotoxic cell lyse IgG coated target cells, D. NK cell contain azurophilic granules
C: Cytotoxic cell lyse IgG coated target cells
Answer: C: Cytotoxic cell lyse IgG coated target cells 
Explanation: Cytotoxic T cells have CD8 surface markers and MHC class 1 restriction which can recognise IgG coated target cells