(四)The Giving Tree is a famous storybook about mothers’ love. It follows the lives of an apple tree and a young boy. The tree always takes care of the boy just like a mother. When the boy is young, he enjoys playing with the tree, climbing her trunk, and eating her apples. However, time passes. He starts to ask the tree for many things. When he wants some money, the tree says, “You can pick and sell my apples.” When he wants a house, the tree tells him, “You can cut my branches to build a house.” When he wants a boat, the tree even wants him to cut her trunk to make a boat. At last, the boy (now an old man) wants only a quiet place to sit and rest, so the tree lets him sit on her stump. The book ends with the sentence, “And the tree was happy.”
【題組】48. What is this reading mainly about?　　
(A) The tree uses the boy and asks him to do a lot for her.　　
(B) The tree usually has a fight with the boy.　　
(C) The tree doesn’t care about the boy’s needs at all.　　
(D) The tree does her best to give the boy everything.