Desalination of ocean water is expensive. Which benefit of desalination makes the cost of the process worthwhile? Dry seabeds can be refilled with freshwater. Marshes can be drained to make space for houses. Fresh drinking water is made available for human survival. More energy can be produced by hydroelectric power plants.

option C is right choice : Fresh drinking water is made available for human survival.

Explanation:

It would safeguard ebb and flow freshwater supplies.

As the planet's freshwater supply is somewhat constrained, it just bodes well that we should save it however much as could be expected. This would verify more assets to be utilized where protection endeavors are right now set, as there is shortage of water that is accessible nowadays.