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
MHC I, II and III function for: 
Select and explain. 
A. Intracellular antigen, extracellular antigens and complement, B. Extracellular antigens, intracellular antigens, toxins, C. Cytokines, D. Macrophages
C: Cytokines
Answer: C: Cytokines 
Explanation: Ans. C. CytokinesMHC I, II and III function for Intracellular antigen (CD8 T cells), extracellular antigens (CD4 T cells) and complement