How does the sentence, "With a faint smile on her quivering lips, her mother had told her, "I am so happy for you, Janice darling!" contribute to the meaning of the passage?
A. It gives a hint about why Janice's mother was worried.
B. It explains why Janice's mother was proud of her.
C. It tells the readers about the mixed emotions Janice's mother experienced.
D. It helps the readers understand how much Janice's mother loved her.