阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项。

    One day, Daisy dreamed a strange dream. She flew in a wonderful carpet to talk with an antelope in Tibet. The antelope told her they were hunted because of their fur which can be used to make sweaters like hers.

Later, she flew to Zimbabwe where she talked with an elephant and got to know the farmers there no longer hunted them. That's because the government decided to help and the farmers finally made a lot of money.

    At last, she arrived at the thick rainforest where a monkey told her “no rain forest, no animals and no drugs.” Although finally everything was gone, she had learned so much.

重100牛的水可以产生的最大浮力为（）