What's the theme of Shelley's ."Ode to the West Wind"? What does the west wind symbolize?

What's the theme of Shelley's ."Ode to the West Wind"? What does the west wind symbolize?

A.Shelley eulogized the powerful weswind and expressed his eagerness to enjoy the boundless freedom from the reality.
B.The west wind, burying the dead year, preparing for a new Spring, becomes an image of Shelley himself, as he would want to be, in its freedom its destructive-construetive potential, its universality.