Someone would use the ethos appeal to enhance their credibility about a certain topic.
The correct answer is D) submit to
submitting to rules or abiding by them means you follow the rules
Hope this helps!=-)
For example you can say:
Dear Friend(or make up a name)
Today I went to the debate competition finals and it was amazing! We went against this school named (school name) and the competition was intense.
Or something like that, just giving you an idea. Make sure to add descriptive words and make sure to apply if you won or you lost.
What is this trying to say