If you are referring to concrete and abstract nouns, then "North America" would be considered a concrete noun, as one can physically touch the earth in Canada and say, "I am touching North America". If it were an abstract noun, such as fear, one would be unable to physically interact with it, as one cannot physically touch an emotion or idea.
Answer:
the three most effective ads
an explanation of each ad’s target audience
an explanation of each ad’s persuasive technique
details from the ad, including slogans or associations
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<span>C. Author-page method
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Answer:
a sentence that contains a misplaced modifer
Explanation:
the sentence contains a misplaced/dangling modifier. the phrase, <em>sailing into the harbor, </em>modifies something unclearly stated in the sentence.
A. Because B doesn't need "...", C shouldn't have "-" and it should have a "," after Lupita, and D shouldn't have "..." either.