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: Pathology
[{'content': 'Which of the following interleukin is secreted by T helper 2 cells? \nSelect and explain. \nA. IL 11, B. IL 7, C. IL 1, D. IL 13', 'role': 'user'}, {'content': "Answer: D \nExplanation: Ans. is 'd' i.e., IL 13", 'role': 'assistant'}]