Read the passage from "Snow.” "Snow," I repeated. I looked out the window warily. All my life I had heard about the white crystals that fell out of American skies in the winter. From my desk I watched the fine powder dust the sidewalk and parked cars below. Each flake was different, Sister Zoe said, like a person, irreplaceable and beautiful.

What adjective best describes the tone of this excerpt?

worried
confused
awestruck
hopeful