To Enhance the Quality of the ECGs Electrical Signal, the Patient's

To enhance the quality of the ECGs electrical signal, the patient's skin should be prepared before applying the electrodes. Skin oil and dead skin cells should be removed by:

A) applying alcohol and slowly rubbing the skin surface with fine sandpaper.
B) briskly rubbing the skin with alcohol and then using electric clippers.
C) briskly rubbing the skin with alcohol.
D) briskly rubbing the skin with the abrasive area on the disposable backing of the electrode or a gauze pad.