15 POINTS & BRAINLIEST ANSWER!!! When the speaker compares dream memories to fall leaves that are hard to catch, what feelings does this simile suggest?

What was I dreaming? It's coming back to me!
But scraps of dream memories drift just out of reach
Like fall leaves dancing in the wind
That I chase madly but cannot catch.

A. The speaker is confident
B. The speaker is disappointed.
C. The speaker is ashamed.
D. The speaker is excited.

I am stuck between B & D. Please explain your answer