comes in colors. has a smoother appearance. creates less pollution. reduces the number of trees cut down.
I gave my students this multiple choice question: It is important to use recycled paper because it

Only one answer is correct among these 4 choices:
- comes in colors.
- has a smoother appearance.
- creates less pollution.
- reduces the number of trees cut down.

Could you tell me which one is correct?

reduces the number of trees cut down.