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
Isosorbide 5 — mononitrate is preferred because 
Select and explain. 
A. Less tolerance develops, B. Sublingual absorption is better, C. Longer duration of action, D. Direct coronary vasodilatory action is more
C: Longer duration of action
Answer: C: Longer duration of action 
Explanation: None