One claim people on both sides agree on is that the controversial, new weight control supplement drastically works. According to a new study from researchers at Haletown University Medical Center, men and women who took the new supplement for 8 weeks lost an average of 16.5 pounds without additional diet control or exercise. Another study published in the journal Nutrition Today found that people taking this supplement extract for similar duration lost an average of 6.7 percent of their total body weight, including 12.3 percent of their total body fat - with zero side effects. In fact, not only were there no side effects, but people using the supplement actually experienced improved health measures too, including reductions in bad LDL cholesterol, triglycerides, and blood sugar.

In the argument given, the two portions in boldface play which of the following roles?

A. The first provides evidence that has been used to support the conclusion that the argument seeks to establish; the second is that conclusion.
B. Both first and second are claims that have been used to support the main conclusion of the argument.
C. The first is a finding that has been used to reach a conclusion that the argument seeks to establish; the second is an extra finding that has no direct bearing on what the argument seeks to establish.
D. The first provides evidence that supports the conclusion that the argument seeks to establish; the second is a finding that has been used to lead to an alternate conclusion.
E. The first provides evidence that has been used to support the conclusion that the argument seeks to establish; the second is a finding that has been used to restrain one from reaching an alternate conclusion.

Experts please help on this.