Answer:
The open window and the landlady both show the creepy experience by the main character. Both add to the experience with imagery and (should I continue?)
Explanation:
The answer would be C.
Since this isn't a flashback, first person, or doesn't lead to anything stressful.
It uses a lot of different words to add on the the terror of the "Death swamp," such as ooze, desperate, hopeless, or even viciously.
The only internal one I ever learned was character versus self.
The others are external:
Character versus fate
Character versus nature
Character versus character
Character versus society
