Answer:
Help nations respond to the problem of scarcity and solve the three key economic issues, are the right answers.
Step-by-step explanation:
The economic system of a nation helps the government to counter the problem of scarcity. Scarcity in the context of Economy is the belief that there is a restricted number of resources throughout the world, urging citizens and corporations to make choices about what they can purchase and produce. At the same time, some economic systems provide choices to be executed by citizens and companies alike (such as capitalism). Another system of economics revolves around the notion of state planning, which actually supports the government to make choices for companies and residents (like communism).