Which phrase or sentence from the excerpt best provides context for the story?

When greg came home for lunch, he realized that his air conditioner was broken. fragment, run on or complete sentence?

Ill she not be here anon? is she not hurrying to upbraid me for my haste? have i not heard her footstep on the stair? do i not distinguish that heavy and horrible beating of her heart? what is the effect of parallelism in this excerpt? it emphasizes usher’s misunderstanding. it emphasizes usher’s love for his sister. it emphasizes usher’s psychological fixation. it emphasizes usher’s melancholy nature.

Need some on this. which answer is it?