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C protagonist, because a foil is someone who contrasts greatly from the protagonist to highlight some of the protagonists characteristics, and the antagonist is basically a villain. Not many in an audience will sympathize with a villain, so the answer use be the protagonist, or the hero that faces obstacles and eventually overcomes them.
It's the first one because the 2nd isn't asking a question. Also, any chance of it being the second goes out the window when you see the 5:30, six? because both would have to marked with the same punctuation.
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your answer is here .......