Answer:
Clover is confused at the beginning because of the incessant killings of animals by Napoleon and her remembrance of a law that prohibits 9be animal from taking the life of another.
She asks Muriel to help her read the sixth commandment which ow states that, "No animal shall take the life of another without cause", she does not recall the last two words being there before but she accepts it and blames it on her poor memory.
She reacts this way because the animals have been brainwashed by Napoleon to the extent that they would rather doubt their memories than question Napoléon
