The term " frontier" (or curve) is a diagram showing the maximum amount of goods and/or services an economy can produce.

The correct answer is Production Possibility Frontier (PFF).

Explanation:

The term Production Possibility Frontier (PFF) (or Curve) is a diagram showing the maximum amount of goods and/or services an economy can produce.

A curve which depicts all the maximum output possibilities for two goods, with given set of inputs consisting of resources and other factors is called a Production Possibility Frontier.

The Production Possibility Frontier assumes that all inputs are used efficiently, representing the point at which a country's economy efficiently producing its goods and services.

the answer is b. hope this !