Answer:
The correct options are two:
A. The president requested a change to the law.
D. The president vetoed the law.
Step-by-step explanation:
In the circumstance that a proposed legislative bill passed by the Congress and is being presented to the president in his capacity as the head of the executive branch of the United States government to append his signature to the bill and make it becomes law. If the president does not approve of such Bill and returned it unsigned within ten days, not counting Sundays, anf the Congress is in session, The President is required by the Constitution to state any objections to the bill(law) in writing, and the Congress is expected to consider them, and reconsider legislation and they vote on such law again to present to the president for his signature again.
The process in which the president returns the bill to the Congress without accenting to it is a Veto and the Congress can then vote again on such Bill and if two-thirds majority of the Congress vote in support of such bill (law), the veto of the president will be overided and the bill becomes law without the president's signature.