Some industrial users are required to pretreat their waste water prior to discharge to the sewer.
The answer which is an example of a theme with a dual nature is D. people who work hard learn values but may not prosper.
The other sentences are pretty linear and expected - a person works hard and is successful in life. D is somewhat different, which is why it has two natures, or a dual nature.
The correct answer of the given question above would be the last option. Based on the given passage above, the s<span>tatement that best describes Swift’s use of understatement in this excerpt is this: </span><span>He states that sending children to the butcher would be as simple as “roasting pigs.” Hope this answer helps.</span>
It's a use of literary styles and techniques to create factually accurate narritives. I found this on google.