What is the goal of a thesis statement?
to establish focus and make a claim
to explain the author's point of view
to act as evidence supporting a claim
to summarize what the essay is about

The goal of a thesis statement is to establish focus and make a claim. It's the heart of the essay and is meant to grab the readers attention. Without it the reader won't have a idea about the  side/claim you take until they get into it. It's in the introduction and usually is the last sentence. It's needs to be strong and get your point/claim across in a good way. Also to make a good impression on the reader.

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which lines ? : )

explanation:

the answer is most likely c. it shows us that the rules that the pigs make can change on a whim whenever it suits the pigs purpose.

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