<span>The correct asnwer is B, helplessness.
The repetition of the phrase "still is sitting" shows that the speaker is helpless to get the Raven to leave. Just as the speaker cannot make the Raven leave him, he is also unable to get over his grief at losing his true love. He will forever be grieving, and the Raven will forever sit above his chamber door.
Therefore, the mood created in this scene is one of helplessness. </span>
No there shouldn't be a comma before the"or"
A duplex is a single structure having two separate parts.
The only one I think would work would be accelerate
If you are talking form a grammatical point, the subject of "the warm inventor" would be the word "inventor".
