How are the responsibilities of the legislative and executive branches of government different when it comes to treaties?

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1 point
U.S. Senate proposes treaties; the president carries out foreign treaties.
U.S. Senate negotiates foreign treaties; the president approves treaties.
U.S. Senate carries out foreign treaties; the president proposes treaties
U.S. Senate ratifies treaties; the president negotiates foreign treaties.

U.S. Senate ratifies treaties; the president negotiates foreign treaties.