Repetition helps exaggerate a point that the author is trying to convey. It highlights the main idea of what that character in the story is trying to let readers understand when stating such phrases.
C. Opposing signal.
Like the opposing side the opposite
<span>The sentence that does not contain any errors is D. Whose muddy shoes are these on my clean kitchen floor? This is because the possessive pronoun whose is correctly used here. In A, it should be Greg's, and not Gregs'. In B, it should be actresses' families, and not actresses families'. In C, it should be it's, because that means it is, and not its, which is a possessive pronoun (the dog wagged its tail).</span>
