Answer:
A. “What did he do for that?” asked Mary.
Step-by-step explanation:
This is the statement that best shows that Mary is beginning to change. At the beginning of the book, we learn that Mary is a selfish girl who cares about nothing besides her own interests and pleasures. She is spoiled and unlikeable. However, she changes slowly. The fact that Mary took an interest in the bird and that she is trying to learn from Ben both show that she is becoming less self-centered.