This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Drugs, Subject name: Medicine
[{'content': 'Which of the following is the major effect of glucocorticoids in asthma? \nSelect and explain. \nA. anti-inflammatory, B. bronchodilatory, C. sedative, D. mucus dissolving', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Glucocorticoids are not bronchodilators, and their major use is in reducing airway inflammation. It is difficult to provide precise recommendations for their use, and a wide range of systemic and inhaled doses are used.', 'role': 'assistant'}]