The mentioned statement from Jonathan Swift's A Modest Proposal can best be described as hyperbolic and ironic. It is hyperbolic in the sense that buying infant flesh (and as implied, eating them) is an over exaggerated solution to the problem being discussed. It is also ironic because Swift is proposing to eat the infants so that they won't have to die of malnutrition and diseases.
Sarcasm would be my answer.
A - Metaphor compares things - this isn't comparing a person to anything. It's more of an observation of a situation.
B - Paradox requires the argument to be sound, yet concludes in senseless. Without further information, we can't assume "you don't have a personality" to be a sound argument, because everyone has a personality.
C - Pun requires some type of word play, which this has none.
D - This is the most likely. We expect everyone to have a personality. Someone making a comment like this sentence is suggesting that the person does not, likely as an attempt at insulting their behavior as bland or boring.
Concentrated? I don't know. Does this have multiple choice questions?
Aliens abduct cows and people into their spaceships
Or the kindnapper will abduct the little girl if no one is watching out for him
