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: Pathology
[{'content': 'MHC restriction is a pa of all except - \nSelect and explain. \nA. Antiviral cytotoxic T cell, B. Antibacterial helper T cell/cytotoxic cells, C. Allograft rejection, D. Autoimmune disorder', 'role': 'user'}, {'content': 'Answer: D \nExplanation: . Autoimmune disorder', 'role': 'assistant'}]