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 with a-blocker capacity is ? 
Select and explain. 
A. Atenolol, B. Labetelol, C. Propanolol, D. Metoprolol
B: Labetelol
Answer: B: Labetelol 
Explanation: Ans. is 'b' i.e., Labetelol Combined alpha & beta blockers o Carvedilol o Bucindolol o Nipradilol o Medroxalol o Labetalol o Bevantolol o Dilevalol