There should be no interference with slavery in the states in which it already existed... not sure if correct .
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 correct answer is TRUE because sociology is a science every bit as much as biology or chemistry. Social sciences, like natural and biological sciences, use a vigorous methodology. This means that a social scientist clearly states the problems he or she is interested in and clearly spells out how he or she arrives at their conclusions. Generally, social scientists ground the procedure in a body of existing literature. This is precisely how other sciences function.
So, sociology is a science which attempts the interpretive understanding of social action in order thereby to arrive at a causal explanation of its course and effects.<span />
Explanation:
the government owns and control all major industries
The consequences of the Black Death were numerous and varied. Countless workers died, ravaging families through failed means of survival and causing personal affliction; landowners who used laborers as tenant farmers were also impacted. It is estimated to have abolished 30 percent to 60 percent of the European population.