The most appropriate pacemaker mode for a patient that has atrial fibrillation with slow ventricular response is: A. AAI (atrial pacing, atrial sensing, inhibited ventricular pacing) B. VOO (ventricular pacing, asynchronous) C. DDD (dual-chamber pacing, dual-chamber sensing, dual response) D. VVI (ventricular pacing, ventricular sensing, inhibited)