Final answer:
The President's vetoing of a bill that Congress approves is an example of c)checks and balances, reflecting the separation of powers and the system's intention to prevent any one branch from becoming too dominant.
Step-by-step explanation:
The President's vetoing of a bill that the Congress approves is an example of checks and balances. This constitutional principle is designed to ensure that no single branch of government becomes too powerful. When a president vetoes a bill, it serves as a check on the legislative branch's power. However, Congress can override this veto with a two-thirds supermajority vote in both the House of Representatives and the Senate, which serves as a further check on the executive branch's power.
While the president has the power to veto legislation, these vetoes can be seen as part of the presidential system's balance of power, ensuring that legislation is double-checked before becoming law. Similarly, Congress's power to override a veto demonstrates the intention of the Founding Fathers to create a system based on Montesquieu's idea of separation of powers and checks and balances, encouraging cooperation and preventing unilateral action by any single branch.