Question

Where and how was the concept of checks and balances first used?

Answer 1

We can automatically remove the 3rd option because it really has nothing to do with checks and balances.

Answer 2

Remeber that the powers of the government are in balance between the three branches.
Each branch has different powers.

Answer 3

in order to make sure that one branch didn't become too powerful, the Constitution has checks and balances that enable each branch to keep the others in line.
We could also remove the 2nd one because only one branch dealt with trade... ig e.e
Which option makes the most sense to you?

Answer 4

the last one?