Question

in nerve and brain stimulation, pain is relieved using:
o a low - voltage electric current
o needles inserted in precise locations
o pills, patches, injections, or liquids
o biofeedback techniques
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Explanation:

Nerve and brain stimulation often use a low - voltage electric current to relieve pain. Needles inserted in precise locations refer to acupuncture, pills etc. are medications, and biofeedback is a different non - electrical stimulation method for self - regulation.

Answer:

A. a low - voltage electric current