i would say D
lol this reminds me of someone oh wait ME lol
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.
Briefly tie up what your introduction said.
DO NOT add any new information.
You can add what you have learned however that should be covered before the conclusion.
The writer can also propose a question to its readers.
Lord Shamash will help Gilgamesh defeat Humbaba