Government debt is the:
a. amount of money that a government has borrowed from international sources but has not yet paid back.
b. amount of money that a government has borrowed from domestic sources but has not yet paid back.
c. total amount of money that a government owes in the economy

The slope of a production possibilities curve is based on opportunity cost.

a. true b. false

Where do economic agents such as individuals, firms, and nations interact with each other?

A) in any arena that brings together buyers and sellers B) in any location where transactions can be monitored by consumer groups and taxed by the government C) in any physical location where people can physically get together for selling goods, such as shopping malls D) in public locations monitored by the government