Imagery is the correct answer I think
An epigraph is a quotation, poem or a phrase at the beginning of a document or a story which serves to present a preface, summary or sometimes even a counter example or to link the work to a broader perspective. From the given options, a Quotation from Voltaire can serve as an epigraph to the story.
Therefore, the answer to this question is:
Option B: A quote from Voltaire
No, she is not handicapped. She is the one running the Handicapper General. As she probably sets herself as the standard, she likely sees herself as equal and doesn't give herself handicaps.
Shadowy seems like the best fit of the choices.