The word (verb), "<u>work</u>", is the simple predicate in the sentence given.
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D). statistics. this shows that you are up to date on facts, and can prove facts about the topic you are speaking about. facts and statistics are concrete evidence that emphasize your arguments and help make your tip cohesive.
plus it makes you come off as smarter and more credible.
-hope it helps
The one you have selected is the correct answer.
