This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pharmacology
Which is a soft steroid used in bronchial asthma 
Select and explain. 
A. Budesonide, B. Dexamethosone, C. Ciclesonide, D. Fluisolide
C: Ciclesonide
Answer: C: Ciclesonide 
Explanation: Ciclesonide has got high topical, systemic activity ratio Refer Katzung 11/e p348