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
All of the following are useful in the management of acute asthma except : 
Select and explain. 
A. Hydrocortisone intravenously, B. Salbutamol inhalation, C. Salmeterol inhalation, D. Terbutaline inhalation
C: Salmeterol inhalation
Answer: C: Salmeterol inhalation 
Explanation: None