This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: COPD and Asthma, Subject name: Medicine
Cough variant asthma is treated with? 
Select and explain. 
A. ICS Low dose once a day, B. LABA once at night, C. SABA twice daily, D. Anti-tussive lozenges as an when required
A: ICS Low dose once a day
Answer: A: ICS Low dose once a day 
Explanation: Cough variant asthma - Rx - ICS low dose once a day Because main enzyme is PLA2 produces leukotrienes and this PLA2 is inhibited by the use of steroids by the patient