The one that would be a helpful tool to help nations, communities, and families to compensate for scarcity while trying to get what they wanted and needed would be:
D. A chart illustrating international trading patterns
The problem of scarcity is one of the major problems which is really difficult to cope with. Nations do the study of economics and certain factors help them to control their economy but still its not possible to get rid of the scarcity but only control it, the reason is that people have fewer resources and a high rate of demand. Therefore, they can keep an eye or have calculations of their economic needs in order to stay on the top of their economic strength.
