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
[{'content': 'All of the following are functions of CD4 helper cells EXCEPT: September 2012 \nSelect and explain. \nA. Immunogenic memory, B. Produce immunoglobulins, C. Activate macrophage, D. Activate cytotoxic cells', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B i.e. Produce iinmunoglobulins B cells divide and transforms into plasma cells which synthesize immunoglobulin. T cells produce activation products (lymphokine) and induce cell mediated response', 'role': 'assistant'}]