I believe that the answer is A, to emphasize a point.
Answer:
Based on their experience, the framers shied away from giving any branch of the new government too much power. The separation of powers provides a system of shared power known as Checks and Balances. ... Each of these branches has certain powers, and each of these powers is limited, or checked, by another branch.
The two verbs in that sentence is ran and tired <span />