Aurelius killed Christians, while Pius was good to his people and kept peace and this was the way Marcus Aurelius and Antoninus Pius differed from each other. The correct option among all the options that are given in the question is the third option. I hope this is the answer you were looking for and it has helped you.
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 !!
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Answer:
They were called Federalists
Explanation: