The correct option is D we figure an equitable way of sharing water
While all the above answers looks good, three of the four answers are impractical in many ways and also an indirect solution to the current states thirst for water, thus a third party should device and equitable use of water, that means the water won't be used equally but as per the needs of the people and there would be an account to know the use and charges will be put on the person/ organisation for over exploitation of the resources.