What does the Production Possibilities Frontier illustrate?

The Production Possibilities Frontier (PPF) illustrates the combinations of output that an economy can produce given the available resources and technology. It demonstrates the trade-offs between two different goods or services, showing how an increase in the production of one item can lead to a decrease in the production of another due to limited resources. The PPF is typically depicted as a curve that represents the maximum feasible output levels for these goods, indicating efficiency in production as well as opportunity costs.

The other options do not accurately capture the essence of what the PPF represents. It does not focus on revenue generated from sales or the specific optimal mix of goods produced; rather, it provides a visual representation of all possible combinations of goods that can be produced effectively with the available resources. Additionally, while the PPF relates to the factors of production, it is specifically concerned with output combinations rather than detailing the factors themselves.