The water supply in the middle east is being threatened by climate changes, shrinking aquifers, and overpopulation. what is most likely the biggest challenge in finding a way for the nations there to cooperate to solve these problems? a) the nations involved have a history of solving conflict through warfare. b) the urban and rural areas of the region can not reach a compromise about water rights. c) the united nations has refused to oversee projects to ensure the equal distribution of water. d) the nations involved do not have the money needed to finance pipelines