Using source 3, why does the U.S. Constitution give different branches of the government checks on one another’s power?

Question

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2 points
It ensures that Congress passes only laws that are approved by all members of government.
It ensures that the president signs only laws that serve the interest of the people.
It prevents any one branch from gaining more power than the other branches.
It prevents state government from having more power than the federal government.

Answer 1

It prevents any one branch from gaining more power than the other branches.