This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Bacterial infections, Subject name: Dental
[{'content': 'The main cytokine, involved in erythema nodosum leprosum (ENL) reaction is- \nSelect and explain. \nA. lnterleukin - 2, B. Interferon - gamma, C. Tumor necrosis factor - alpha, D. Macrophage colony stimulating factor', 'role': 'user'}, {'content': 'Answer: C \nExplanation: The main cytokines responsible for type 2 leprosy reactions are interleukin 1 and tumour necrosis factor alpha. iadvl textbook of dermatology, page 2049', 'role': 'assistant'}]