When Performing Motor-Level Stimulation for Pain Control, What Clinical Response

When performing motor-level stimulation for pain control, what clinical response is expected?

A) Comfortable tingling or buzzing feeling in the area of pain
B) Muscle twitching, which may be accompanied by prickling and stinging sensations
C) Muscle contraction and a feeling of deep pressure in the muscle
D) A painful sensation under the electrodes that may cause anesthesia