Answer:
The correct answer is option C.
Explanation:
A production possibility frontier shows the maximum possible combination of two goods that can be produced using the given resources. Â
The points below the frontier show those bundles which are attainable but not efficient as all the resources are not being employed. Â
The points on the frontier show the bundles that are efficient and attainable. Â
The points above the frontier are unattainable as they need more resources to be produced. Â
So, an economy can produce at a point on the frontier or below it, but the efficient points are on the frontier.