The correct answer is 1. theme
That is because a theme is the most basic concept explored in a piece of fiction, like the battle of good versus evil, which can be explored in million ways.
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.
George Gordon Byron<span>, who is usually referred to as </span>Lord Byron<span>, was a prominent British writer, most famous for the </span>influence<span> of his poetry on the romantic movement that originated in the eighteenth century. </span>Byron<span> was also the 6th Baron of the </span>Byron<span>family, hence his being known as </span>Lord Byron<span>.</span>