Answer: D. It confirms that the speaker hopes the dead Lenore will return
Explanation:
When Lenore was lost, the narrator still believed and hoped that he will return. As time passed, he became desperate.
When he heard a knock on the door, he quickly rushed to see who it was but didn't see anyone. So, he whispered Lenore's name but didn't hear any reply
It confirms that the speaker hopes the dead Lenore will return.