The correct answer is D. Congress overrides a presidential veto of a law that establishes a new tax.
Step-by-step explanation
The principle of checks and balances is a principle of government (constitutional) in which it is established that the branches of the public power (judicial, executive, and legislative) have the right and the duty to act to avoid actions of other branches to power is balanced between the three branches. According to the above, the correct answer is D. Congress overrides a presidential veto of a law that establishes a new tax because it illustrates a situation in which the branch of the legislature (Congress) avoids an action by the branch of the executive branch (president).