选择题：What can we learn from the last paragraph?

题目内容：

What can we learn from the last paragraph?

A. Fighting wastefulness is difficult.

B. Needless material is mostly recycled.

C. People like collecting recyclable waste.

D. The author is proud of their consumer culture.

参考答案：【答案仅供学习，请勿对照自行用药等】

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