This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Immunity, Subject name: Pathology
[{'content': 'Interleukin secreted by Th1 cells include? \nSelect and explain. \nA. IL-2, B. IL-4, C. IL-10, D. IL-13', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. (a) IL-2(Ref: Robbins 9th/198 )Cells of the TH1 subset secrete IL-2 for self activation & cytokine IFN-g, which is a potent macrophage activator.', 'role': 'assistant'}]