By producing safe, drinkable water with reduced energy consumption, (21) ______.

A. wastewater recycling becomes a promising solution to water scarcity

B. time and resources are distributed in an organized manner

C. future desalination could rely on wastewater as a reliable source

D. this recycling process tends to be more complex and costly

Ms Tra My_E12_Part 2_Đề tinh tuý 12