Answer:
none of them are underlined...?
Explanation:
A book that gives you problems you need to solve.
That is false. Hope I helped you :)
The answer is the last one. Hannah thinks that cats are happier outdoors than they are indoors.
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