Read the fourth stanza from "Mutability.”

It is the same!—For, be it joy or sorrow,
The path of its departure still is free:
Man’s yesterday may ne’er be like his morrow;
Nought may endure but Mutability.
Which best states the idea conveyed in the last line of this stanza?

a. Nothing in this world is worth holding on to.
b. Change is the only thing that is eternal.
c. Time heals even the very worst of sorrows.
d. Each day is a fleeting and precious gift.