Water, When It Is Not Tradeable Among Current and Potential

Multiple Choice

Water, when it is not tradeable among current and potential users, is often kept that way

A) by governments who demand tight controls on who gets the water.
B) by nature, as water cannot be easily moved from place to place in large quantities.
C) to protect fish and other wildlife, rather than for any other reason.
D) by monopoly owners in the private sector.