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
Drug used in AV Block  a)  Isoprenaline  b)  Dopamine  c) Astropine  d) Disopyramide  e)  Propranolol 
Select and explain. 
A. ac, B. ad, C. bd, D. cd
A: ac
Answer: A: ac 
Explanation: None