Its C Their because their is the only option refering correctly to the sentence. Read the sentence out loud with option C and you will "C" that it is correct lol
A is wrong because it has Nobody and nothing in the same sentence. That makes the meaning of the sentence confusing because there are too many negatives.
Same goes for B. B has Never and no in it. Double negatives.
<em><u>C is the correct answer.</u></em><em><u /></em><u />
D is wrong because it has Don't which is a contraction for "Do not" and it also has nobody.
Hope that helps :)<em><u>
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