<u>The quote from the above passage that illustrates Della's optimism is this: 'MY HAIR GROWS SO FAST, JIM. </u>
Explanation:
Optimistic means to be Positive,hopeful and confident.
<u>In order to get a good Christmas gift for her husband (i.e a watch) Della went for a haircut and sold her long hair's to get money. When Della's husband bough </u>her a set of expensive hair combs which she always desired,she said to her husband<u> "My hair grows so fast,Jim! </u>Della is very optimistic that her hair's will grow fast and she will be able to use the combs.