provides useable drinking water creates cleaner water for rivers enables more fish to live in lake water allows more plants to grow along rivers
I gave my students this multiple choice question: Some machines can remove the salt that is in seawater. How does removing salt from seawater most help people?

Only one answer is correct among these 4 choices:
- provides useable drinking water
- creates cleaner water for rivers
- enables more fish to live in lake water
- allows more plants to grow along rivers

Could you tell me which one is correct?

provides useable drinking water