How is the theme of loneliness developed in chapter 4 in Of mice and men?

Lennie goes to the barn to see his puppy when everyone else goes into town. Crooks does not want to let him in but finally does. Crooks tries to make Lennie understand how lonely he is by asking him how he would feel if George never came back from town.

Explanation:

Just summarized it

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.