Pretty sure the answer would be C.
Revision involves clarifying purpose and meaning.
All other choices would be incorrect because they are a part of the process of editing.
"The Grand Canyon is a stunning sight" is an independent clause.
Explanation:
Being an American means that you can make your own decisions about where you want to live, where you would like to work, who you'd want to marry ect. It means being brave, being proud of this country, and being confident that we will succeed. Being an American is an honor not a privilege.
