Please help If the author had to edit this article, which sentence would be MOST important to keep?

A
When she spends time with her relatives, she ends up caring for the younger children in her family.
B
Each box has a book with African-American characters and products from businesses owned by black people.
C
She said her cousin is like a little sister to her.
D
Another plan is for a children’s box to be called the Firefly Box, she said.