Answer:
D. generally much more expensive to produce than water produced using other methods
Explanation:
Producing freshwater through desalination usually being done for water that's taken from the sea. The water from the sea contains high amount of sodium, which will be unconsumable before we extract the sodium content. Desalination is the term for the process to extract that sodium.
This process is expensive. Typically, The desalination process could cost the producer around $0.13MM to $0.40MM per thousand /day. Taking fresh water from other sources (such as clean river) will completely overlook this additional cost.