This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: All India exam, Subject name: Pathology
[{'content': 'WHICH of the following cell is most commonly associated with chronic allergic asthma ? \nSelect and explain. \nA. TH17, B. TH1, C. TH 2, D. TH 4', 'role': 'user'}, {'content': 'Answer: C \nExplanation: TYPE 4 HYPER SENSITIVITY IS MEDIATED BY T CELLS : TH 1 CELLS - macrophages = tb, contact dermatitis TH2 CELLS- esinophills = chronic allergic asthma and rhinitis TH 17 - macrophage and neutrophil = atopic dermatitis , rhematoid ahritis ( HSR 4 >3) REF : ROBBINS 10TH ED', 'role': 'assistant'}]