The following are multiple choice questions (with answers) about medical knowledge.   **Question:** A patient presented with acute exacerbation of bronchial asthma. Salbutamol inhalation didn't improve the condition of the patient. So, intravenous coicosteroids and aminophylline were added and the condition improved. What is the mechanism of action of coicosteroids in this condition?   (A) They cause bronchodilatation when given with xanthines   (B) They increase bronchial responsiveness to salbutamol   (C) They increase the action of aminophylline on adenosine receptors   (D) They increase the mucociliary clearance
['(B) They increase bronchial responsiveness to salbutamol <> answer', 'The following are multiple choice questions (with answers) about medical knowledge. <> instruction', '(A) They cause bronchodilatation when given with xanthines \n (B) They increase bronchial responsiveness to salbutamol \n (C) They increase the action of aminophylline on adenosine receptors \n (D) They increase the mucociliary clearance <> possible answers', "  A patient presented with acute exacerbation of bronchial asthma. Salbutamol inhalation didn't improve the condition of the patient. So, intravenous coicosteroids and aminophylline were added and the condition improved. What is the mechanism of action of coicosteroids in this condition? <> context@"]