When Ivan Jakovlevitch finds a nose in his bread, what is his biggest concern? What does this say about his character?

His biggest concern was if someone were to find out he had the nose, they would accuse him and rat on him. He was also afraid of getting arrested. This says about his character by indirectly saying he is afraid of the police

the correct answer is the first option "the bolkshevik revolution". the passage makes reference to many of important events that occured in the revolution, such as the assemblies, in this case the animals are gathered in an assembly after a protest, the murder of fellow partners, the speeches given by the leader of the revolution, among other aspects. the last choice is possible, but in this passage in particular it is not emphasized the fight between the characters, that is the two pigs, that represent lenin and stallin.

banquo is a great foil