<span>In the passage Twain is using the literary technique of dialect, to tell us subtly about the background and race of the speaker. </span>
C it makes the most sense
The answer is B.
It's not A because the sentence involves the words "very stressful", which is an opinion.
It's not C because saying that taxpayers "should expect" is also an opinion.
It's not D because it's saying you "should always", which is an opinion.
Hope this helped!