Which sentence uses capitalization correctly?

“Northeast” is capitalized because it names a specific region, so “This summer I plan on visiting family in the Northeast” uses capitalization correctly. In A, “senator” should be capitalized when used as a title before a person’s name. In C, “Friend” is not a proper noun and should be lowercase. In D, the novel’s title should be capitalized and set apart, as in “The Great Gatsby.”

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