Energy will be provided by solar power and wind farms, and there are also plans to build…

Energy will be provided by solar power and wind farms, and there are also plans to build the world's largest hydrogen plant. A desalination plant will be used to provide the city's water, with 80% of water used being recycled.

The advantage of the desalination unit is to ------- .

a)‎ provide the city's water

b)‎ build the world's largest plant

c)‎ provide the city's wind farms

d)‎ build the world's wind farms