Respuesta :
I think the correct answer from the choices listed above is the third option. If the president negotiates a treaty with another nation, it then becomes a law in the United States when it is approved by the senate. This can be read in the Treaty Clause. Hope this helps.
I believe the answer is: after being approved by the senate
This power is written under the article II of the united states constitution, The treaty would become a law after at least 2/3 of the senates votes in favour of it. Despite having this power, the senates cannot ratify the treaties. They can only either approves or rejects a resolution of ratification.