The Production Possibilities Frontier Is A

The production possibilities frontier is a:

A) graph that shows the various combinations of output the economy can possibly produce, given the available resources and technology
B) graph that shows the various combinations of resources the economy can possibly produce, given the available output
C) graph that shows the various combinations of concrete the economy can possibly produce, given the available agricultural land
D) graph that shows the various combinations of wheat the economy can possibly produce, given the available cement