Read these passages: Preface: This distinction prevailed until August 2006, when the International Astronomical Union (IAU), prompted by pressure from the professional community of planetary scientists as well as from the general public, brought Pluto's planethood to a vote at a triennial general assembly in Prague, Czech Republic. The result? Pluto was formally downgraded from "planet" to "dwarf planet," thereby helping to diffuse the negative attention that we had been receiving for six years running.

—Neil deGrasse Tyson, The Pluto Files
Interview:
Over the years, people started realizing that maybe that kind of makes sense, and six years later, the International Astronomical Union, they took a vote, and basically they said Pluto should be reclassified. So we were, in the end, kind of vindicated.

—Neil deGrasse Tyson, interview by Melissa Block, "Astrophysicist Chronicles Battle over Pluto"

What is one difference between the interview, "Astrophysicist Chronicles Battle over Pluto," and the preface from The Pluto Files?
A. The interview is clearly structured while the preface is not well-
organized and hard for the audience to follow.

B. The interview expresses a complete idea while the preface just
gives an overall impression of the topic.

C. The interview contains run-on sentences and "filler" words while
the preface uses complete sentences.

D. The preface shows the author's emotion while the interview shows
the author's attitude in an unemotional way.