Why is mary shelley's novel frankenstein considered a work of science fiction when it is a representative work of the gothic genre?

Respond for free points because i don't have a question anymore.

Which of the following describes the structure of this excerpt best? a. free verse b. sonnet c. ballad d. blank verse

"the only completely stationary object in the room was an enormous couch on which two young women were buoyed up as though upon an anchored balloon. they were both in white and their dresses were rippling and fluttering as if they had just been blown back in after a short flight around the house."