Question

the principle of scarcity applies to
the poor exclusively.
nations exclusively.
all consumers.
all firms.
everyone; consumers, firms, governments, and nations.

Explanation:

The principle of scarcity in economics states that resources are limited, and thus everyone—consumers (who want goods/services), firms (needing resources for production), governments (allocating resources for public goods), and nations (managing national resources)—faces scarcity. It is not exclusive to the poor, nations, only all consumers, or only all firms.

Answer:

everyone; consumers, firms, governments, and nations.