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: Social & Preventive Medicine
[{'content': 'AIDS virus spreads in the body through (MHT-CET) \nSelect and explain. \nA. Suppressor T-cells, B. Carrier T-cells, C. Helper T-cells, D. Killer T-cells', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Helper T cells are arguably the most important cells in adaptive immunity, as they are required for almost all adaptive immune responses.\nThey not only help activate\xa0B cells\xa0to secrete antibodies and\xa0macrophages\xa0to destroy ingested microbes,\xa0but they also help activate cytotoxic T cells to kill infected target cells.', 'role': 'assistant'}]