I think it's b? It would only be C if you caused the accident or if you were in the accident.
Answer:
C.
Explanation:
The character stays <u>optimistic</u> and encouraged herself to do better.
While we wait for the sun to rise is a sentence fragment.
There is no ending that completes the sentence.
To finish, an example would be:
<em>While we wait for the sun to rise, we eat breakfast.
</em><em>
</em>