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.
You may be referring to the cytoplasm here. That is the "filling" within the cell. But if you are looking for specific transport of proteins, the ER folds proteins and then transport vesicles move them to the Golgi.
