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
Amyl nitrate is most commonly administered 
Select and explain. 
A. Intravenously, B. By inhalation, C. Sub lingually, D. Orally
B: By inhalation
Answer: B: By inhalation 
Explanation: None