D. a science article about how talking directly on cell phones changes brain waves
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
Citations telling where you got your information. Hope this helps! :)
<span>D: a long, elaborate comparison between two dissimilar actions or objects.</span>