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
Beta blocker having both α and β blocking property is: 
Select and explain. 
A. Carvedilol, B. Sotalol, C. Nadolol, D. Pindolol
A: Carvedilol
Answer: A: Carvedilol 
Explanation: None