Which of these definitions best describes mood in poetry?

the message about life the poet wishes to convey

the attitude with which the poet writes about a topic

the emotional quality of a literary work

the reason or cause for a character’s actions

C) The emotional quality of a literary work.

Explanation: 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, from the given options, the definition that best describes mood in poetry, is the corresponding to option C: The emotional quality of a literary work.