United States France China United Kingdom’s Soviet Union
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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The three things that brought about the fall of Rome when they all hit at once are:
1. multiple civil wars
2. economic collapse due to inflation
3. repeated invasions from all over
Rome used to be the most powerful country that ruled most of the world, but over time, its strength started to wane. In the end, due to many reasons, such as these above, it was forgotten and gave way to new countries being created.
Answer:
Carnegie turned his one Pennsylvanian production plant into a veritable steel empire through a business tactic called vertical integration.
Explanation:
Andrew Carnegie was a Scottish-American industrialist and philanthropist. Carnegie led the expansion of the American steel industry in the late 19th century and became one of the richest Americans in history. He became a leading philanthropist in the United States and in the British Empire.
Hope this helps! If so please mark be the brainliest! Peace and love
The american block(capitalism and the communist block