The Diagram Below Shows Two Production Possibilities Boundaries for Country

Multiple Choice

The diagram below shows two production possibilities boundaries for Country X. FIGURE 1-4
-Refer to Figure 1-4.The production possibilities boundaries are drawn concave to the origin.What does this shape of the PPB demonstrate?

A) the decreasing opportunity cost of producing more of either good
B) the scarcity of resources in the economy
C) the constant opportunity cost of producing more of either good
D) the unfair distribution of resources in the economy
E) the increasing opportunity cost of producing more of either good