Answer:
While a free-market economy is a market system whereby the pricing of goods and services is primarily determined by the sellers and buyers, and is hence based on demand and supply, a command economy is an economy whereby the market system is fully controlled by the government.
Explanation:
Hope it helps.
it worked for mine.
Lead an army of cats to conquer the world!!
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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One of the reasons why the Roman Empire produced more coins is because the Empire was constantly expanding and they needed to more money in circulation. Another reason was that people would chip the sides off the coins.