Sajan presents with lower back pain and reports that the pain has been persistent without lasting relief. The treating therapist would like to use low-rate TENS with 2 Hz and 200 microseconds parameters. Which of the following is the MOST likely reason for the selected parameters:
\nA. Acute Pain
\nB. Chronic Pain
\nC. Patient\u2019s sensitivity to electrical stimulation
\nD. Patient has a pacemaker
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