This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiration, Subject name: Pathology
[{'content': 'The most important function of epithelioid cells in tuberculosis is: \nSelect and explain. \nA. Phagocytosis, B. Secretory, C. Antigenic, D. Healing', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. (b) Secretory(Ref: Immunology, 8th edition, by David Male; pg 427)Epithelioid cells are transformed macrophages that have lost their phagocytic function but retained their secretory activity.Epithelioid cells contain numerous endoplasmic reticulum & golgi bodies.They secrete IL10, TNF alpha, TGF beta;', 'role': 'assistant'}]