Answer: C. While life is fleeting, art has the ability to live on.
Step-by-step explanation:
The Speaker in this poem was admiring an urn. An urn they viewed as a historian due to its perceived ability to tell stories through the pictures depicted on its body.
The speaker then spends each stanza admiring some of these depictions, making statements that show that whilst life is fleeting, art is forever.
For instance, when he spoke of the Piper with his lady he told the Piper that even though he would never be able to kiss his lady, she would never fade in beauty, that his tunes will be forever new and that their love will last forever unlike human love that fades.