Answer:
A. Irony.
Step-by-step explanation:
Kurt Vonnegut is one of the greatest writers who have exploited masterfully the genre of satire and the use of irony. A satire is a literary genre that, through irony and humor criticizes a societal problem aiming at advancing a more just or balanced solution. Irony is a literary device that, in broad terms, shows you on the surface of things, an appearance of what seems to be the case, when in reality, in a deeper sense, the actual case is something profoundly different. In this story in particular, Vonnegut presents us with an anti-hero of sorts, who rebels against mandatory social equality and in so doing, ironically, Vonnegut shows us the importance of social and personal differences in relation to the construction of any community.