问题详情

According to the passage, what could be an efficient way to use water？
A．Adopting the system of water right owned by the government.
B．Charging for water in places where water is becoming scarcer.
C．Taking political measures to interfere with the water issue.
D．Making it a free market for people to trade water-usage rights.请帮忙给出正确答案和分析，谢谢！