What part of the essay establishes the analysis that will occur?
a. the summary
b. the evidence
c. the thesis
d. the conclusion

The part of the essay which establishes the analysis that will occur is the thesis. 
The thesis statement is the sentence in which you should summarize what you are going to talk about further in the essay. 

Animal farm is a story adout animals that start a rebellion but the animals start to live like their owns the oppressors which is being compared to a hard working time and the poor is geting paid less then the rich that brings alot in the book animal farm