In don quixote, miguel de cervantes uses the story of a man who dresses as a knight to explore a. military strength b. government corruption. c. human nature. d. human suffering.

C. Human nature. The novel explores themes ranging from sanity (did he took knighthood as something right coming from a mentally stable background?), morality (clashing the already antiquated knighthood morality with modern morals), social class (Cervantes defied the notions that aristocrats were automatically good and noble persons creating wise but poor characters, while the aristocrats of the novel were often frivolous and futile) while also discussing about mortality, gender, race etc.