Answer:
D. Hardin uses an ethical appeal to make himself seem trustworthy by admitting that there are "harsh" elements to his argument.
Step-by-step explanation:
Hardin used the appeal to ethos in his speech to be trusted by admitting that there are "hard" elements in his argument
An appeal to ethos depends on the credibility, competence and reputation of the person making the argument. A person considered as an authority on the subject she is talking about would make such an argument. The argument is mostly based on relying on the opinion or analysis of an authority or expert, rather than looking for direct evidence and proof that anyone can follow in the argument.