The slopes of the production possibilities curves for two nations reflect the

A) relative prices of the resources in the two nations.
B) amounts of imports and exports of the two nations.
C) average income levels in the two nations.
D) opportunity costs of production in the two nations.

Production Possibilities Curves

A graphical representation showing the maximum quantity of goods and services that can be produced within an economy, given fixed resources and technology, when those resources are fully and efficiently utilized.

Opportunity Costs

The cost of forgoing the next best alternative when making a decision or choice.