Question

a similarity between the separation of powers, the system of checks and balances, and federal
are all related exclusively to the federal government.
are all ways that the constitution limits government power
each illustrate the idea of popular sovereignty.
each serve to increase the power of the federal government.

Explanation:

Separation of powers divides government functions, checks - and - balances allows each branch to limit others, and federalism divides power between levels of government. All are constitutional means to limit government power.

Answer:

B. are all ways that the Constitution limits government power