Answer: B) Personification.
Step-by-step explanation:Personification is a figure of speech where the author gives human qualities to objects. In the given excerpt from John Keats's "Ode on Melancholy", we can see many different examples of personification, like "beauty that must die", "joy whose hand is ever at his lips bidding adieu" implying that Joy has hands and says goodbye, "His soul shall taste the sadness of her might", the personification here is that the soul can taste.