The battle of Cowshed shows how the animals won their independence from humans, but it mainly focuses on Snowball.
The author used imagery in this excerpt!
I would say true because he treats her like dirt.
If you accept either C or D as the correct revision then you have to accept both of them. Hence the best way to treat the sentence is to ignore both of them.
B is not correct either. You can over punctuate.
That leaves A.
Sometimes the right answer to many things is to do nothing. My dad used to say "Don't fix what isn't broke."
A is the answer <<<<<