Which of the following, it true, casts most doubt on the prediction? A. When taken regularly, Omega sleeping pills, more than other sleeping pills, cause people to be unsteady on their feet. B. Omega sleeping pills, when taken regularly, can be taken in gradually decreasing dose without any diminution of the desired effect. C. Measuring a person's bone density is not currently a part of a routine medical checkup. D. In people whose bone density decreases, the likelihood of a hip fracture increases at a greater rate than does the likelihood of any other kind of bone fracture. E. People who regularly take Omega sleeping pills are no more likely than people in general are to have a physically inactive lifestyle.