问题详情

What can be inferred from the fourth paragraph？
[A] Farm areas accept waste from the city in modem society.
[B] There is cheap land to bury waste in modem society.
[C] It is difficult to find space to bury waste in modem society.
[D] Ways to deal with waste in modem society stay the same.
请帮忙给出正确答案和分析，谢谢！