This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Microbiology
Cell mediated immunity is by viue of? 
Select and explain. 
A. Helper t cells, B. Suppressor t cells, C. Cytotoxic t cells, D. All aboce
D: All aboce
Answer: D: All aboce 
Explanation: All above REF: Jawetz's 24th ed chapter 8 Cell mediated immunity is effected by T cells Helper T cells, suppressor T cells, cytotoxic T cells are types of T Cells