Read Text II and answer the question that follow it.
Text II
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.
Robert Frost, "Nothing Gold Can Stay", from: https://www.poetryfoundation.org/poems/148652/nothing-gold-can-stay-5c095cc5ab679.
The tone of the poem is