solved I’m working on a english multi-part question and need an

I’m working on a english multi-part question and need an explanation to help me learn.

Please read pet sematary by Stephen King (1983 novel) and watch the 1989 film pet sematary (directed by Mary Lambert) to fully answer the following questions (at least a well developed paragraph for each question that fully answers it):
1. What role does Zelda, Rachel’s sister, play in the novel? Could she be “cut” from the book or the “film(s)” without sacrificing something important or vital to the plot?
2. Early in the novel a student, Victor Pascow, is killed in an automobile accident. The ghost/spirit/apparition/whatever of Pascow re-appears at several points in the novel. What function does Pascow play in the novel? Why is he a messenger? After all, he has nothing to do with the burial ground, was not even a resident of Maine, did not in fact know Louis.