Read the following excerpt from a speech by a national leader:

Today, our nation was attacked by another nation in an aggressive and unprovoked manner. We cannot stand idly by and allow this country to steal our resources, enslave our people, and cause great harm and violence.

Which addition to the speech best uses logos to appeal to the audience?

AHow could any nation do this to another nation, much less to one that has done nothing to deserve this mistreatment?
BThe data is clear: By addressing poverty first we can have a greater impact on revitalizing our cities.
CBecause we participate in the alliance system, our allies will come to our defense, and our invaders will soon regret their aggression.
DWe are allowed under international law to defend ourselves, and we will not hesitate to do so with swift and decisive action.

The correct answer is C. Because we participate in the alliance system, our allies will come to our defense, and our invaders will soon regret their aggression.

Explanation:

The word Logos refers to a mode of persuasion based on the appealing to the logic in order to convince the audience about something mainly by providing evidence such as facts or statistics that show the words of the speaker are true. This means the Logos relies on facts and evidence that support the speaker's ideas. In the excerpt presented the author is speaking about the national security and the attacks by another nation, suggesting to the audience it is necessary to take action to stop the other country's attacks. This implies the appeal to logos that completes the speech needs to show through facts and evidence the way action is necessary or how the attacks can be stopped.

Considering this, the most appropriate addition that completes the excerpt and uses logos is "Because we participate in the alliance system, our allies will come to our defense, and our invaders will soon regret their aggression" as in this excerpt the author is using a fact which is the alliance system (appeal to logos) and the excerpt is directly connected to the topic of the speech as the author explains the way the attacks will be stopped.