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
Sublingual tablet or sublingual GTN metered dose aerosol usually relieve angina in 
Select and explain. 
A. 15 sec, B. 2-3 min, C. 10-12 min, D. 30 min
B: 2-3 min
Answer: B: 2-3 min 
Explanation: None