<span>D. He is appealing to the audience's sense of logic.
Appealing to the audience's sense of logic is called logos, and it is an important part of the Rhetorical Triangle. Audiences need logic, facts, statistics in order to trust the information that the speaker is presenting. The use of statistics here is appealing to that logic. </span>
I believe its the ability for the word to be pronounced. This is not something that can be done in a paperback and allows the reader to know how to pronounce the word correctly.
Explanation:
Do you have the actual excerpt?
I'm pretty sure that the answer you're looking for is C. This is because we do not use hyphens in numbers.