Are these the lines you were referring to?
1)Then, upon the velvet sinking, I betook myself to linking
Fancy unto fancy, thinking what this ominous bird of yore
2)This I sat engaged in guessing, but no syllable expressing
To the fowl whose fiery eyes now burned into my bosom's core
3)But whose velvet violet lining with the lamp-light gloating o'er,
She shall press, ah, nevermore
4)Then, methought, the air grew denser, perfumed from an unseen censer
Swung by seraphim whose foot-falls tinkled on the tufted floor
5)Respite—respite and nepenthe from thy memories of Lenore!
Quaff, oh quaff this kind nepenthe, and forget this lost Lenore!"
The answer would then be 3 and 5.
The lines of choice 3 is referring to the velvet violet lining of the cushion where Lenore used to sit. He remembers that Lenore will no longer sit on that cushion again.
The lines of choice 5 on the other hand refers to the part where he was having delusions. The imaginary smell he supposed was nepenthe, which in mythology was a drink or a potion that helps one forget. He claimed it must be a scent sent by God to help him forget Lenore.
