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
The role played by Major Histocompatibility Complex (MHC)-1 and -2 is to: 
Select and explain. 
A. Transduce the signal to T-cell following antigen recognition, B. Mediate immunogenic class switching, C. Present antigens for recognition by T-cell antigen receptors, D. Enhance secretion of cytokines
C: Present antigens for recognition by T-cell antigen receptors
Answer: C: Present antigens for recognition by T-cell antigen receptors 
Explanation: Ans. c. Present antigens for recognition by T-cell antigen receptors