Okay well the appositive is the book by E.B. White, and the appositive is renaming Charlotte's web.
Books have more detail while movies show more of the facial expressions one may have. Movies also have budgets, while books often times do not. Books do not need paid actors or a million dollar set.
Answer:
b. unimportant
Explanation:
extras are usually background characters who are insignificant to the story