Which of the following attributes does Keats admire and celebrate most in "Ode on a Grecian Urn"? Support your answer choice, citing details from the poem.

I think the speaker admires the urn’s immortality and depth. I think the urn had lived and met people from different walks of life. The urn had talked like a wise old man, telling the stories of the people who have gone to the other side and shared the learning of those who have passed.