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: Anaesthesia
Duration of action of paraprocaine is 
Select and explain. 
A. 20 minutes, B. 10 minutes, C. 20 seconds, D. 10 seconds
A: 20 minutes
Answer: A: 20 minutes 
Explanation: Procaine acts for around 20 minutes, althought it’s onset of action is within 10 seconds.