There have been many film adaptations of Mary Shelley's novel Frankenstein. How do most film adaptations differ from the original text version of the story?

AThey make the story more exciting by only giving Victor’s version.
BThey create more sympathy for the creature by giving him a back story.
CThey create less sympathy for the creature by making him a mindless beast.
DThey are less complex because they lack the multiple perspectives of the novel.