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 Montelukast is: \nSelect and explain. \nA. Inhibition of leukotriene production, B. Inhibits alpha receptors, C. Beta receptor agonist, D. Phosphodiesterase inhibition', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Inhibition of leukotriene production', 'role': 'assistant'}]