How does franklin use irony in this excerpt from remarks concerning the savages of north america?

the good missionary disgusted with this idle tale, said, what i delivered to you were sacred truths, but what you tell me is mere fable, fiction and falsehood. the indian offended, reply'd, my brother, it seems your friends have not done you justice in your education, they have not well instructed you in the rules of common civility. you saw that we who understand and practise those rules, believ'd all your stories: why do you refuse to believe ours?

B) by showing the settlers their inability to see the similarities with Native Americans.

Explanation:

In this excerpt, the missionary explains his Christian beliefs to the "Indians," hoping they will believe him and convert. The Native people seem to accept the misisonary's stories, and they proceed to tell him theirs. When they are done, the misisonary does not believe any of the Natives' stories. The native people, therefore, become very offended. They argue that it is only polite to accept their stories too, since the Natives have accepted the missionary's stories. The irony is that the Native Americans see all myths as being on the same level, an idea that a missionary cannot comprehend.

1. list two reasons why fossil fuels should continue to be used as a source of energy in america.