Answer:
B.
Explanation:
The production possibilities curve shows the trade off, where the more of them of one item toy choose to produce means a corresponding decrease in the other item.
The curve represents the maximum productivity of two different items.
The curve also shows that the trade off may not be a 1 to 1 ratio. At each end, it only takes a small diversion of resources to produce a large quantity of the other item.
All points in the curve are possible and equally efficient in production. The points outside of the curve are impossible with own production. The points inside the curve are inefficient.