Federal is defined as a. the administration of law b. a union of states under one national government c. enthusiastic support for one’s country and way of life d. the doctrine that citizens have power to decide how country should operate

B. a union of states under one national government

Explanation:

In a federal government, power is split between a central authority, such as the national government,  and constituent political units, such as each states´ authorities.

Federalism is beneficial for a country like the U.S., with such a diverse population. However,  conflicts in authority about whether something is a federal or a local government issue.

the correct answer is ) possibility.

demonstrating opportunity cost is done through production possibility.

the opportunity cost can be demonstrated using the production possibility frontier or curve. this graphic shows the total number of possibilities for two products when we have the resources needed and used in an efficient manner. the main resources could be money, labor, and technology. the curve shows that the production of one good increases when the production of the othe