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
A 34 years old man with a long history of asthma is referred to a pulmonologist. The physician decides to prescribe zileuton. The mechanism of action of this drug is to : 
Select and explain. 
A. Antagonize leukotriene D4 receptor, B. Inhibits 5–lipoxygenase, C. Inhibit phosphodiesterases, D. Stimulate β2 receptors
B: Inhibits 5–lipoxygenase
Answer: B: Inhibits 5–lipoxygenase 
Explanation: None