You could say that mood is the feeling that awakens in the reader during the poem. It is conveyed with ideas and specific lexical items to show whether someone should be happy, sad, melancholic, or similar.
In literature, mood is a literary element that evokes certain feelings or vibes in readers through words and descriptions. We can also say that the mood is the emotional setting of the piece or its atmosphere (the emotions that surround the story or poem). So, the definition that best describes mood in poetry is the emotional quality of a literary work.
A. Abab
Deck rhymes with wreck and fled rhymes with dead. So I would say A
Place: A cave or inside the cave
Time: nearly winter time