This is a trick question, since some of these paper choices don't even exist! Avery does not make ANY product with the number 6150 as part of the product name, according the the Avery company site.
If Avery doesn't even offer the paper in answers (A), (B), (C), or (D), then that cannot be the right answer. Why would your book tell you to buy a kind of Avery paper that doesn't even exist?
If we google "Avery standard, 5160," then there are 34,000 results for that at Google, so it must exist. Avery must offer a paper 5160 and, in fact, this number appears at the Avery company site.
If we Google "Avery Standard, 6150", there are only 34 results for that search, so that paper doesn't exist and all of the results come from trick tests like the one your teacher has given you, or from people who have accidentally transposed the numbers 5160 and 6150.
Since answers (B) and (C) have the number "6150," which is not even a paper that Avery makes, therefore answers (B) and (C) are wrong.
The question you want a paper for "label choices." After excluding answers (B) and (C), as we have above, the only remaining choice that is a label paper is (D). Therefore, (D) is the correct answer, no matter WHAT your book says.
Confirming this, there are no search results for the search "Avery Standard 5160" at Avery's website. But there IS a search result for "Avery label 5160."
Since "Avery Label 5160" is the only paper that Avery actually manufactures from among the 4 choices above, therefore (D) ("Avery Label 5160") is the correct answer, no matter what your book says.
75% of the question being asked of you here is whether or not you read your book or not, but there are millions of other ways you find the answer, aside from reading your text book. In fact, reading your text book might be the LEAST efficient and most INefficient (waste of time) way to look for the answer, in many cases.
Don't let your Computer 101 textbook or your computer course prevent you from learning about computers. If you use your brain and Google, you'll find that both are FAR better resources than your textbook. Logic is also a better resource than your textbook, since your logic will last you a lifetime and many of the computer products in your textbook won't even exist in five years.
If you had gone to Google first, without looking for the answer in your textbook, you would have discovered that many other students have been given this question and were unable to find the answer. That's because it is a trick question and, because you didn't use Google and you relied on your book only, you were TRICKED.
Let this be a lesson to you! NEVER check your mind or your brain at the door when you go into ANY classroom! There's nothing in a text book that you can't discover using your intelligence, your logic and Google!
I'm confident that I found the right answer at Google, and I don't even have a copy of your book.
What's in your book is not a magical world that can be divorced from the real world. Your book can't tell you something is true if there is no other way to CONFIRM that truth.
There HAS to be somewhere else where you can discover and confirm the information, and that "somewhere else" is often going to be Google.
If you didn't have a computer and access to Google, then I could understand why you wouldn't use a search engine to look for the answer to your question. But, you DO have a computer and broadband (and access to Google). Otherwise, you wouldn't be leaving questions on this site.
You might find it hard to find a needle in a haystack, but Google and its computers can find one needle in ten thousand haystacks, even if you start not knowing what a haystack is.