Vietnam War soldiers. The Vietnam War was fought between communist North Vietnam and the government of Southern Vietnam. The North was supported by communist countries such as the People's Republic of China and the Soviet Union. The South was supported by anti-communist countries, primarily the United States.
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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Cites and factories grew and Canada grew by people they came to Canada to make land and cites and time by time it grew
B Adolf Hitler is the answer