I need more information please
The above system of United States Constitution is showing three organs of the state i.e Legislative branch, Executive branch and the Judicial branch.
And below each division, their works are given. Aswecan were that, each of the organ is at same height which shows that they are practicing equal powers and they don't interrupt in each others work.
They practice the system of <u>Checks</u><u> </u><u>and</u><u> </u><u>Balances</u> to ensure that none of the organ is enjoying and grabbing too much.
So, the most appropriate option is:

Checks and balances system.
And, we are done !!
#CarryOnLearning...
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William Blackstone (1723-1780) is an English lawyer, author of "Commentaries to the Laws of England" (1765 – 1769), which is considered the best statement of the doctrine of Anglo-Saxon law. This work, created on the basis of the first lecture course on English law, became the basis for the University of Legal education.
Answer:
North America, the Caribbean, and South America