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
Which of the following is the major effect of glucocorticoids in asthma? 
Select and explain. 
A. anti-inflammatory, B. bronchodilatory, C. sedative, D. mucus dissolving
A: anti-inflammatory
Answer: A: anti-inflammatory 
Explanation: 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.