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.
While i ate The turkey, I thought it was the epitome of meat
Answer: Big city that he lives in and he is afraid to let his cat outside
Explanation: Diego is someone who is living in a big city and it's normal for big cities that many dangerous situations that could happen to human or animals. In that city, there are many dogs that can harm his cat or people that can steal her and he is afraid because of those things and that is something that can best show why is he keeping Oz indoor.
He doesn't want his cat to be in dangerous situations because he doesn't want to lose his cat.
Swift’s judgements and works are still accurate; known mostly for his famous “Gulliver’s travels”, but also for other works such as “A modest proposal”, his highly ironic style is a great satire of human nature. In his writings, he addressed philosophic issues such as the true nature of freedom and the meaning of knowledge, which are still applicable in the modern world.