Answer:
It tells you that the author has great talent because she writes good stories for children as well as adults.
Step-by-step explanation:
In the main idea of the paragraph, which deals with Blume's talent and success as a writer, is supported by the fact that she has also written rewarding titles for adults, apart from her accomplishments in children's stories. Therefore, the rest of the paragraph makes reference to Blume's novels for adults.