Humans typically assume bats are blind, Using the expression "You're as blind as a bat!". But really, Bats are not blind at all.<span />
Folklore can be described as the dissemination of any type of information through oral communication or through leading by example. This information will represent the collective ideas of a certain group of people and can be transmitted through mediums such as literature or knowledge. Nowadays the world has morphed into a technologically advanced sphere where all information can be acquired at the touch of a button. This however doesn't change the definition of folklore, it only changes the medium through which we share the information.
Answer:
It's C. It indicates that Douglass believes he deserves freedom.
Rhetorical questions are often used in contexts like these. Almost always, they indicate something similar to this answer. So, yes, it's C.