Which option best states the central ideas of the article?
a
"frankenstein" is still studied at colleges and universities, and it has remained one of the most popular novels ever to be published.
b
"frankenstein" is a story based on the "year without a summer," and the cold and darkness from that year impacted the dark themes of the story.
c
"frankenstein" is a story based on science, and mary shelley did thorough research to make sure a corpse could be reanimated with electricity.
d
"frankenstein" was and is a very popular story, and its author, mary shelley, used her love of science to explore dark themes and important questions about humanity.