When resources are not freely available in amounts sufficient to satisfy all desired uses for them
A. The forces of supply and demand must be relied on to answer the questions of what output to produce how to produce and who gets to consume
B. Scarcity exists and decisions must be made about how to allocate limited resources among cometing uses
C. Government is required to identify what areas of the economy are most deserving and direct resources and output to those areas
D. An economy is not able to operate at a point on its production possibilities frontier