Which type of figurative language is used in this sentence from george orwell’s novel keep the aspidistra flying?

the public are swine; advertising is the rattling of a stick inside a swill-bucket.

(a) flashback

(b) oxymoron

(c) euphemism

(d) metaphor

Mr. amoroso is worried about jerri, a girl who is struggling in his seventh-grade class. he thinks about several different reasons why she might be having so much difficulty with her schoolwork. which one of the reasons he considers is consistent with a behaviorist perspective of learning?