Which of the following statements BEST supports the author's main point in paragraph 5? (AKS 11)

A.
Missionaries impacted the expansion of acupuncture.

B.
Acupuncture books were published which led to wide use of the technique.

C.
Acupuncture was created in other parts of the world and eventually established in America.

D.
Although the use of acupuncture has risen and declined over the centuries, today it is still a popular form of treatment for illnesses.