This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Cardiovascular system, Subject name: Pharmacology
50yr old male presented with the following ECG pattern. Which drug not to be given for his condition? 
Select and explain. 
A. Atropine, B. Propronolol, C. Prazosin, D. Epinephrine
B: Propronolol
Answer: B: Propronolol 
Explanation: The given ECG shows bradycardia, beta blockers are contraindicated in bradycardiaRef: HL Sharma; 7th ed. Pg 191