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.

*flashback
*oxymoron
*euphemism
*metaphor
need !

What is the best way to manage oil transport on waterways? a. prevent oil spills and regulate the amount of oil that can be shipped at one time.b. use a skimmer, containment boom or chemical dispersant to clean up spilled oil.c. burn off oil spills from the water's surface when they occur.