Answer:
Option D, can be desalinated and used for irrigation
Explanation:
In all the engineering processes including mining distilled water is used. thus option A is not correct.
Salt water is found in both oceans and seas and they form up to 75% of the total water available on planet earth. Thus both option B and C are ruled out.
With the technological advancement and development of new ways of desalinating salty water, it is now possible to use desalinated salty water in irrigation. Thus option D is correct.
