C. The sacrifice of sharing a room with my brother was going to be worth it.
Explanation:
The first few passages were kind of a flashback description of her grandparents and how awesome they were, so that would be more of a prologue.
At the beginning of the story, Olinda is furious that she would have to be sharing her room with her brother, who is very messy.
However, her attitude changes by the end of the story. She sees that she would have to make sacrifices to live with her grandparents, and that this sacrifice was worth it.
C. The sacrifice of sharing a room with my brother was going to be worth it.
Explanation:
At the beginning, she was not happy with sharing a room with her brother. Now, at the end, she realized that she was being selfish and changed her outlook, and she appreciates the fact that her grandparents are there with her, even if it means doing something she dosen't like.
