A conclusion is whenever the reader understands what motivates the character.
Therefore your answer would be,
The reader understands the characters' motivation.
Ethos I believe I am doing a course on rhetorical strategies right now
You need an objective pronoun here, and the only such pronoun is <em>us. </em>All of the other pronouns are subject pronouns.
The animated movie was more enjoyable to the children that to us. The correct answer is D.
The definition it would someone that is smart