Q2. The production possibilities frontier is:

a. A diagram showing the quantities of a product that are possible to be produced and sold within a country, if the country uses all the resources at once.

b. A graph that is used to identify the level of production of two goods or products in a given period of time if all resources are used

c. The amount that it is possible for a country to produce in a given day

d. A graph that shows the combinations of output that the economy can possibly produce given the available factors of production and the available production technology.