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: Physiology
[{'content': 'Th2 helper T cells function in: \nSelect and explain. \nA. Cellular immunity, B. Humoral immunity, C. Induce cellular immunity by activation of cytotoxic T cells, D. Both humoral and cell mediated immunity', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]