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
Gene components of HLA class I includes - 
Select and explain. 
A. A, B, C, B. DR, C. DQ, D. DP
A: A, B, C
Answer: A: A, B, C 
Explanation: HLAs corresponding to MHC class I (A, B, and C) present peptides from inside the cell. Reff: Ananthanarayanan & Panikers textbook of microbiology 9th edition pg:140