The correct answer is "It affect the narrator's tone in a piece of writing".
Themes are underlying ideas and have nothing to do with diction and creation of precise images is managed by using vivid and descriptive writing, not with diction.
Ethos is a way an author appeals to the reader/viewer. It is one of the 3 appeals...Ethos, Pathos and Logos
Ethos is based on credibility and building trust...so we are looking for facts or things that would make the author worth listening and a credible source.
Example:
Dentists across the world trust and use this toothpaste.
The fact that we know that dentists are endorsing this product adds to the appeal and credibility...it turn we trust it.
<span>We could not give her those glib assurances that naive souls make so easily to others concerning their after state. …
The narrator is making it clear here that he does not believe in an after life. He says that he cannot assure Mrs. Herd that she was going anywhere in an "after state" because he thinks people who say things like that are being 'glib' and 'naive'. </span>
Let America Be America Again" is a poem written in 1935 by American poet Langston Hughes. ... The poem speaks of the American dream that never existed for the lower-class American and the freedom and equality that every immigrant hoped for but never received.