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 adrenergic blocker having cardioselectivity, intrinsic sympathomimetic activity and membrane stabilizing property is: 
Select and explain. 
A. Carvedilol, B. Atenolol, C. Acebutolol, D. Metoprolol
C: Acebutolol
Answer: C: Acebutolol 
Explanation: None