Question

what can happen if the president chooses to veto a law that has been approved?
the law returns to being introduced in the house or the senate.
the veto can be overridden by a two - thirds majority vote in both houses.
the law is rejected and cannot be reconsidered, it is effectively dropped.
the presidents decision is scheduled for review within a year.

Explanation:

Under the U.S. legislative process, when a president vetoes an approved law, Congress has the authority to override this veto. A successful override requires a two-thirds majority vote in both the House of Representatives and the Senate. The other options are incorrect: the law does not return to the introduction stage, it can be reconsidered via an override, and there is no mandatory one-year review of the president's veto decision.

Answer:

The veto can be overridden by a two-thirds majority vote in both houses.