Answer: C
Explanation: commas go within quotation marks.
Answer: a pronoun indicating possession, for example mine, yours, hers, theirs.
Explanation: it’s MY dog. I own it.
D. The independent clause is after a "," and does not rely on the sentence.
Answer:
The answer came out of the blue.
Explanation:
This is just a metaphorical way of saying that the answer came suddenly, abruplty, or unexpectedly.