Which of the Following Is NOT True of Medications Used

Which of the following is NOT true of medications used as antidysrhythmics?

A) Class I antidysrhythmics are used to block sodium channels to slow the impulse conduction.
B) Class II antidysrhythmics are beta-blockers that decrease the SA automaticity, AV velocity, and myocardial contractility and are similar to calcium channel blockers.
C) Class III antidysrhythmics block potassium channels prolonging ventricular repolarization.
D) Class IV antidysrhythmics are calcium channel blockers that have effects identical to those of beta-blockers.
E) All of the above statements are true.