What is ventricular tachycardia (VT)?
A) A condition where the heart beats too slowly, often leading to fatigue and dizziness
B) A rapid and abnormal heart rate originating from the lower chambers of the heart (ventricles)
C) A type of arrhythmia where the heart beats irregularly due to faulty electrical signals
D) A condition characterized by an increased number of white blood cells in the bloodstream