Of the following excerpts from the gettysburg address, which is an example of ethos?

"our fathers brought forth on this continent a new nation, conceived in liberty and dedicated to the proposition that all men are created equal."
"we cannot dedicate, we cannot consecrate, we cannot hallow this ground."
"we have come to dedicate a portion of that field as a final resting- place for those who here gave their lives."
"the world will little note nor long remember what we say here."

"Our fathers brought forth on this continent a new nation, conceived in liberty and dedicated to the proposition that all men are created equal."

Explanation:

Ethos means character and comes from the word ethikos, which means moral and moral personality. For the speakers and writers, ethos is formed by its credibility and identification with the public.  

According to Aristotle's rhetoric, ethos is particularly important to create interest in the public. The tone and style of the message will be central to this. In this case, the phrase "Our fathers brought forth on this continent to a new nation, conceived in liberty and dedicated to the proposition that all men are created equal." Is how Gettysburg convinces the public that he is qualified to speak on the subject , how their character or authority influence the audience with this message, appealing to the ethos.

they fear for their lives