What is one difference between the interview, "astrophysicist chronicles
battle over pluto," and the preface from the pluto files?

This question is incomplete, here´s the complete question.  

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"

How are the excerpts from the preface of The Pluto Files and the interview, "Astrophysicist Chronicles Battle over Pluto," different?

A. The preface shows the author's emotion while the interview displays the author's attitude in a less emotional way.

B. The preface is not clearly structured while the interview is well-organized and easy for the audience to follow.

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

D. The preface contains run-on sentences and "filler" words while the interview uses more complex sentences.

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

Explanation:

While the preface provides a solid explanation about the process that took the scientific community to finally categorize Pluto as a dwarf planet, the interview goes over the same subject without providing factual data to present the argument, almost as if it the main point was about Neil deGrasse Tyson´s vindication instead of Pluto´s history.

don't hold me on this but it should be b

1. read the following excerpt from franklin d. roosevelt's "fireside chat 19":

on the other side of the picture, we must learn also to know that guerilla warfare against the germans in, let us say serbia or norway, us; that a successful russian offensive against the germans us; and that british successes on land or sea in any part of the world strengthen our hands.

remember always that germany and italy, regardless of any formal declaration of war, consider themselves at war with the united states at this moment just as much as they consider themselves at war with britain or russia. and germany puts all the other republics of the americas into the same category of enemies. the people of our sister republics of this hemisphere can be honored by that fact.  

the true goal we seek is far above and beyond the ugly field of battle. when we resort to force, as now we must, we are determined that this force shall be directed toward ultimate good as well as against immediate evil. we americans are not destroyers — we are builders.

analyze the effectiveness of this excerpt. how does it function within the speech as a whole? how does the structure of the excerpt to convey the speech's purpose and key points? support your argument with evidence from the speech. (10 points)