Poland, poland was a neutral country that was protected through a social agreement and when he invaded the surrounding countries were infuriated.
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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Charles L. Eidlitz was chosen I believe
Answer:
B. expanded education
C. reformed legal system
F. attempts to make life better for the commoners
Explanation:
Catherine The Great similar to many rulers from the period she was ruling was known as an absolute monarch. She mostly reigned without allowing anyone to interfere in her decisions, but through the influence of Enlightenment movement she made some good decisions. Among them are the mentioned ones - expanded education, reformed legal system and improvement of life conditions for commoners.