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: Pharmacology
[{'content': 'Mechanism of action of zileuton is : \nSelect and explain. \nA. Inhibits production of IgE, B. Inhibits Lipoxygenase, C. Inhibits Cyclooxygenase, D. Inhibits activity of mast cells', 'role': 'user'}, {'content': 'Answer: B \nExplanation: None', 'role': 'assistant'}]