What must writers do when using language taking from an outside source

Hi how are i have some questions about english subject can you answer for me ?

According to homer's iliad, which greek god was helen of troy's father? a. apollo b. poseidon c. zeus d. hades

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.