The striking example in The Journal of the American Medical Association aims to prove ________.

A、the five years following surgery is dangerous in that there is much likelihood to have recurrence.;

B、surgical removal is not reliable because it could not eliminate all cancer cells of colon cancer.;

C、The Journal of the American Medical Association often reports the latest discovery in science.;

D、Western diet, in some uncertain way, excites the growth of cancer cells after the surgery.