This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Physiology
All of the following are actions of Cytotoxic T-cells except 
Select and explain. 
A. They destroy translated & other foreingn cells, B. They display the glycoprotein CDS, C. They can phagocytose cells, D. They act by using perforins and produce lymphotoxins
C: They can phagocytose cells
Answer: C: They can phagocytose cells 
Explanation: Phagocytosis is seen in humoral immunity mediated by circulating antibodies produced by B lymphocytes. Cytotoxic T cell destroy transplanted and other foreign cells, with their development, aided and directed by helper T Cell. Cytotoxic T cell displays CD8 and helper T cells display CD4. They kill organisms by inseing perforins into their cell membrane and thus producing holes. Ref: Ganong's Review of medical physiology, 24th edition.Pg no. 69 Textbook of medical physiology by N Geetha, 2nd edition, page no. 96,97