Restrictive elements should be set off by punctuation since they can be removed without changing the meaning of the sentence. You could use commas, dashes and parentheses
This might sound quite trivial, but Marcus must ask himself a few questions. One is "What would best bridge the differences and similarities between the subjects" & "If Marcus has an idea of what should be between the two, is there any words and phrases he can swap out for better word choice/mood for the research paper".
He was living on a large farm in Santa Clara before he was kidnapped
A. Represents how liberty enlightens the world.
Liberty - the state of being free.
Freedom is a key to living life. That’s why it is called the Statue of Liberty and everything in it symbolizes freedom.