Electrode Placement Methods Vary with Electrical Stimulation for Tissue Repair

Electrode placement methods vary with electrical stimulation for tissue repair. Which of the following techniques would be considered a direct technique?

A) Placement of both of the stimulating electrodes on intact skin surrounding the wound
B) Placement of the stimulating electrode directly over the wound and the other electrode on skin peripheral to the wound
C) Placement of both stimulating electrodes directly into the wound
D) Placement of one of the electrodes at the site of injury on the opposite side of the body and one directly in the wound