Answer: to place emphasis on a specific word
Explanation:
Say for a Pit-bull dog, people see them as scary and aggressive animals, but they aren’t like that because it’s the way their owners treat them and the way they train them. If the owner abused the dog then most likely the dog will suffer from that and will be aggressive towards other humans. Now if you train the dog well and treat them right then maybe it won’t be so aggressive.
Quotations add emphasis to ideas, so A is out. If quotations add emphasis to ideas then they also add strong support to claims therefore C is out. Quotations add credibility to writing as well so D is out. Therefore B is the right answer, you would not include direct quotations in a story to add length to a boring story.