<span>D is the correct answer. Slogan D is most effective because not only does it give important information (the date of the fair), which none of the other slogans give, it uses an imperative verb “come” which is important in influencing people to take action.</span>
The purpose for including the affair was to have character development in the story. Abigail was willing to do anything, including the attempt to try and kill Goody Proctor in order to obtain John. This also made the foundation of Abigail, Goody Proctor, and John and how they were all significant in story development. If the writer had left of the detail of the affair, we wouldn't know why Abigail was trying to get rid of Elizabeth unless we made blind assumptions.
I think it's B I'm working on the same course :)
That answer would be <span>C. During a relatively brief period of time, the fast food industry has helped to transform not only the American diet, but also our landscape, economy, workforce, and popular culture.</span>