Read the excerpt below and answer the question.

I went inside then and in a moment he was gone. I watched him from the window as he went down the street. He was whistling softly and I waited until the sound faded away so I couldn't tell if it was he or my heart whistling out there in the night. And then he was gone, completely gone.

I shivered. Somehow the darkness seemed changed. The stars were little hard chips of light far up in the sky and the moon stared down with a sullen yellow glare. The air was tense with a sudden cold and a gust of wind swirled his footprints into the white oblivion. Everything was quiet.

But he'd said, "I'll call you." That's what he said—"I'll call you." I couldn't sleep all night.

Which word best describes the tone of this excerpt from Daly's "Sixteen"?

a) ashamed
b) confused
c)disappointed
d) hopeful