Read the excerpt from the passage.

(7) Suddenly she whirled from the window and stood before the glass. Her eyes were shining brilliantly, but her face had lost its colour within twenty seconds. Rapidly she pulled down her hair and let it fall to its full length.

What does the author mean when he writes that Della's "face had lost its colour"?

A.
Della's complexion is fair and exquisite.
B.
Della has become sick with worry about Jim's gift.
C.
Della has realized what she must give up for Jim.
D.
Della's hair is her only element of beauty.