OK so I guess you are writing an essay about The film and short story. in that essay you have to compare and contrast the two which means how different is the story from the film like what did they change in the book or film that might of affect the outcome
So basically u need to write an essay on the similarities and differences on the traits of a short story and a script/film and make sure to explain how those traits influence the ways an author tells a story. and uhm keep urself out of it lol
The idea that once someone votes against something once that then they will always vote against that thing is an extremely quick and incorrect assumption. Along with this, B couldn't be the answer because it isn't a slippery slope. Nor is this false authority or circular reasoning.
This is because of the name itself -- a "group" project. It's not a "solo" or an "alone" project. You are responsible for the other people's work in your group. It is important to make sure everyone contributes their own work in a group project, and not someone else's.