I don't understand the question you are asking, is it supposed to be in regards to something else?
The answer is the third answer:
"the beginning of collectivization, and the idea that all should share in wealth."
The pigs say that the soil of England is fertile and that the farm could support a bigger number of animals that inhabit the farm now. They also say that all of the animals could live in comfort.
Hope this helps!
Change how much time and effort is required to something else.
Even without the choices to the question, the irony found in that excerpt is evident. In the story "Mericans", a young girl is narrating the events about how she is trapped between her old heritage and the new world (Mexico and America, respectively).
The irony would be that the narrator is not from there either. We know this since the girl and her brother is not allowed to enter the church too.