“When Caitlyn is with Tyler all of her problems seem to disappear. But as things get serious, she discovers Tyler's jealous side. Once she realizes her "perfect" boyfriend is as controlling as he is caring, Caitlyn is faced with a choice: she can either let this relationship define her, or find the courage to break away” (Goodreads)
Some good essay typing websites are:
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Microsoft Word
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Hope some of these help!
The best answer is A.
although B and C are correct, they mostly miss the point of the sentence.