Fritz Has Chronic Back Pain and Seeks Out the Help

Fritz has chronic back pain and seeks out the help of an acupuncturist. Which of the following outcomes is most likely?

A) Fritz finds relief because the acupuncture stimulates the production of endorphins.
B) The acupuncture doesn't work because it tends to work best only in females.
C) Fritz remains in pain because acupuncture never works.
D) Fritz finds relief because the needles distract his attention from the chronic pain.