I think that C, that is, "they found the charge and trouble very great, and they had little or no crop it is not doubted", is your answer.
Understatement represents something as smaller or less intense than it reallly is, it presents it as less important. In sentence C, the speaker refers to a problem as a minor inconvinience "(...)trouble very great". Generarlly, we all know, that troubles are far from great. "They had little or no crop it is not doubted", you could change the focus and say that you have "some crop" instead of referring to the crop as being little.
In a text i read your answer is "The purpose of an Argumentative Essay is to defend a debatable position on a particular issue with the ultimate goal of persuading readers to accept the argument."
Have a nice day stranger!
<span>Allude to the 3 main points you wish to address in the main body of the essay.
Touch on the organization of your argument.
Explain what significance your argument has.
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Appear in the first paragraph, as it serves as an introduction to your approach to the literary work.</span></span>
