In "nothing gold can stay," why does robert frost allude to eden

a. eden is a place that remained perfect forever, just like the world described in frost's poem.

b. eden is a place that, like the natural world, is known to be filled with gold.

c. eden's short-lived perfection is similar to the temporary perfection of nature's first green.

d. eden is a place that frost visited many times and came to think of as golden.