Read the following paragraph from “Sweet Nothings.”

Sugar substitutes can provide more choices for people who are trying to avoid the calories and other drawbacks of regular sugars. That’s important in an age when Americans are confronting the health problems that go with obesity. Yet, as Swithers’s research shows, the answers aren’t clear-cut.
Analyze the paragraph and select the correct organizational structure.

A fact, contrast, implication
B fact, implication, contrast
C Transition, expert opinion, contrast
D expert opinion, contrast, fact