Western Social Scientists Often Speak About the "Tragedy of the Commons

Western social scientists often speak about the "tragedy of the commons." What do they mean by this concept? Most scientists:

A) believe that common lands will be misused because of human maximization of resources (greed) .
B) believe that in large urban areas there is not concern or sense of stewardship exerted over parks and public free spaces.
C) define the commons as the global marketplace today. It is tragic because it destroys small businesses and families.
D) argue that any land which is not owned individually can be appropriated for government use.
E) argue that state lands should be owned by the government because it preserves the land for the use of all citizens.