Answer:
D. The narrator is removed from the story and gives details about all the characters.
Explanation:
C. Wait Megan, we'll go to the library together.
Commas act as sort of a breath in the sentence, you wouldn't need one in A or B. It would be strange to pause there, so it is incorrect. As well, whenever you directly address someone in a sentence you need a comma after their name, however it has to do it without changing the sentence. Therefore C is the correct answer.
Answer: The complete predicate of the sentence given is:
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"depends on us" .
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