The pronoun that complete the elliptical cause is "I" because sentence uses the word "My" in the very beginning of the sentence so that person is either talking for themselves or someone else, if for someone else than a name would be in The list of answers.
Katniss is irritated when Gale suggested them leaving. She reacts harshly because she wants to stay and take care of her family.
It is a colon
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The answer is A to make an argument or explain a process