The answer is C,
Use precise, sensory language. :)
Hey, the answer to the question would be "subordinate conjunction"
When joining two independent clauses with a comma, a subordinate conjunction needs to accompany the comma.
Answer:
Both Bernie Sanders and Donald Trump, for example, have proposed changes that would be considered rebellious by most.
Explanation:Sentence 2 says that they have promoted new ideas that are anti-establishment. This option backs up that claim.
"The Grand Canyon is a stunning sight" is an independent clause.