PLZ HURRY IT'S URGENT!!!!

Why does the creation of Animal Farm represent irony in the novel?
*This question is talking about the book "Animal Farm"*

A. Animal Farm works well until the destruction of the windmill by Snowball, who designed it.


B. Animal Farm allows the animals to roam freely, but they lose the stable future they had with Farmer Jones.


C. Animal Farm comes full circle to the same conditions as it was under Farmer Jones.


D. Animal Farm gives the animals control over their lives, but they must work harder to maintain that control.