I believe your answer would be D. the subject-verb agreement states that if the subject is singular, then the verb must be singular and if the subject is plural than the verb must be plural.
You take a story and explain the entire thing with only a couple paragraphs, and you don't want to give away any special details that way a person can know a little about the book and want to read it. Like a "A dog and His Ball" is about a lost dog who doesn't have a family and finds an old ball to play with. You would put this on the back of a book and then people would be drawn to read this book. ( I just made something up so it may not make sense sorry.)
I'm not really sure I understand what you are asking, but I tried to answer the best I could, please let me know if this isn't what you meant.
A. Incas. Should be the correct answer because they developed in the Andes Mountains
Answer:
The case for diversity cites a study by a Nobel prize-winning scientist that shows when diversity is introduced in a group, the entire group benefits, not just the minority individuals.
Appeal to authority.
Do you really want to spend your time with a bunch of bigots and extremists who are afraid of people who don't look like them?
Appeal to emotion
Diversity makes sense when you think about it. How do people learn? Not by encountering the same old thing over and over again, but by encountering new things. And diversity introduces new things, and new people, into your environment.
Appeal to logic.
An appeal to authority which is also known as Argumentum ad Verecundiam that uses the opinion of a figure of authority to back up a claim or support an argument.
An appeal to emotion is used to stir up the emotions of a person so as to convince them about a proposition.
An appeal to logic is used by showing reasons why a person should do something, what would happen when the person fails to do it and why an option is the best possible solution.
