Question

Read the poem “Nothing Gold Can Stay,” by Robert Frost.

Nothing Gold Can Stay
Nature's first green is gold,
Her hardest hue to hold.
Her early leaf's a flower;
But only so an hour.
Then leaf subsides to leaf.
So Eden sank to grief,
So dawn goes down to day.
Nothing gold can stay.

Which line of the poem expresses the theme that youth passes quickly?

Nature's first green is gold
So Eden sank to grief
Then leaf subsides to leaf
But only so an hour