Answer:
The correct answer is option b.
Step-by-step explanation:
A production possibilities frontier shows the maximum possible bundles of two goods that an economy can produce using its given resources and level of technology.
Because of the scarcity of resources, the production of a good can be increased only by decreasing the production of the other good.
It is possible to increase the production of a good without reducing the production of the other only if the economy is producing at a point below the production possibilities curve.