The terms that apply to the United States federal government from your list are:
- b. delegated powers: These refer to powers specifically granted to the federal government by the Constitution.
- c. separation of powers: This is a fundamental principle of the U.S. government that divides government responsibilities into distinct branches to prevent any one branch from gaining too much power.
The other terms do not accurately represent the structure of the United States federal government:
- a. unitary system: The U.S. is a federal system, not a unitary system, as power is divided between the national and state governments.
- d. parliamentary system: The U.S. operates under a presidential system, not a parliamentary system.
- e. relative powers: While the concept of relative powers can be discussed in various contexts, it is not a specific term that applies directly to the structure of the U.S. federal government.
So, the correct answers are b and c.