Date from the United States Encironmeental Protection Agency's websites supports the conclusions I've made in my argument

The answer is "ETHOS".

Explanation:

Ethos is a way to persuade the public that the hearer is honest and that the argument is credible. It explains the rhetors trustworthiness or why people ought to have confidence in it (or not). In this case, it's well-weighted with the public by the Environmental Protection Agency ( Epa. Whereas the individual hasn't provided the information, the listener is (mostly) assumed to just be credible.

a,b,d are the three sentences that use a reflexive pronoun

i am a pokemon hahahhahahaha