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
All of the following decrease AV conduction EXCEPT: 
Select and explain. 
A. Esmolol, B. Digitalis, C. Lignocaine, D. Verapamil
C: Lignocaine
Answer: C: Lignocaine 
Explanation: None