<prompt> Beta adrenergic blocker having cardioselectivity, intrinsic sympathomimetic activity and membrane stabilizing propey is:CarvedilolAtenololAcebutololMetoprolol  <response>: Acebutolol is cardioselective Beta blocker with intrinsic sympathomimetic activity and membrane stabilizing propey Cardioselective Beta blockers : Metoprolol, Atenolol , Acebutolol , Bisoprolol , Nebivolol These drugs are more potent in blocking cardiac Beta 1 than bronchial Beta 2 receptors. However, selectivity is only relative and is lost at high doses. Beta blockers with membrane stabilizing activity : Propranolol , Oxprenolol , Acebutolol contribute to the antiarrhythmic action 