Which of the Following Is the Most Accurate Statement Regarding

Which of the following is the most accurate statement regarding the meaning of "when in doubt, cross it out" when applying IFC?

A) IFC requires the use of two separate channels that are crossed over the treatment area. "When in doubt," refers to the electrode placement sites.
B) IFC is a doubtful form of treatment.
C) Applying electrodes in a crossed pattern over the treatment area with IFC often yields pain relief when acupuncture points are used as sites.
D) As long as electrodes are crossed with ES, there is no doubt that the result will be pain relief.