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: Medicine
Which of the antiasthma medication is not a bronchodilator - 
Select and explain. 
A. Salbutamol, B. Adrenaline, C. Na+ cromoglycate, D. Ipratropium bromide
C: Na+ cromoglycate
Answer: C: Na+ cromoglycate 
Explanation: None