If you know the answer please help me

How does the narrator’s knowledge of his postapocalyptic world in "by the waters of babylon” affect his reactions to the different settings? it motivates him to make up stories about the world and the places he explores. it has caused him to fear the settings outside the hill country, so he tries to avoid them. it forces him to reject what he sees and experiences himself at various locations in the story. it makes him cautious about new settings yet open-minded and critical of what he experiences.

For english i have to find 4 errors in each diary post

Which evidence from the text best supports the idea that malcolm and donalbain believe they need to flee scotland before someone tries to murder them too?