19. In an article titled "Cola is bad for women" (BBC News online, Oct 6, 2006) it was reported that, according to US researchers, women who regularly drink cola could be increasing their risk of...

Extracted text: 19. In an article titled "Cola is bad for women" (BBC News online, Oct 6, 2006) it was reported that, according to US researchers, women who regularly drink cola could be increasing their risk of osteoporosis. Their study of 2,500 people revealed that drinking cola was linked with low bone density in women regardless of their ages or calcium intake. Which of the following is an appropriate conclusion on the basis of what had been stated? A. There is a negative association between drinking cola and bone density in women. B. There is a positive association between drinking cola and bone density in women. C. Drinking cola and low bone density in women are not related. D. Low bone density in women causes them to drink cola.