This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Inflammation & Repair, Subject name: Pathology
[{'content': 'Th1 cells produce? \nSelect and explain. \nA. IL-1, B. IL-2, C. IL-4, D. IL-5', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) IL-2(Ref: Inflamm Bowel Dis. 1999 Nov;5(4):285-94)Type 1 T helper (Th1) cells produce interferon-gamma, interleukin (IL)-2, and tumour necrosis factor (TNF)- beta, which activate macrophages and are responsible for cell-mediated immunity and phagocyte-dependent protective responses. By contrast, type 2 Th (Th2) cells produce IL-4, IL-5, IL-10, and IL-13, which are responsible for strong antibody production, eosinophil activation, and inhibition of several macrophage functions, thus providing phagocyte-independent protective responses.', 'role': 'assistant'}]