Which phrase from the excerpt best indicates that the narrator is lost in thought?

What sentence correctly uses it’s underlined relative pronoun?

Which literary device does orwell most use to support his purpose in writing in this passage? characters, to show that what happens on the farm is fiction allegory, to show similarities between the farm and the soviet union point of view, to show how the characters think about the murders setting, to show that events in the soviet union may have been caused by the economy

What is the best summary of this monologue