Answer:
-The whole country
Step-by-step explanation:
A law passed by congress applies to the whole country and not to the every or specific country.
Congress has all the legislative power in the government. Though a bill is required to pass through both house and senate with a majority of votes to become a law and then signed by the president of the United States or congress can override the law.
Congress passes a law, it applies to the whole country only because it cannot be applied to specific parts of the country as it can raise dispute inside the country and other countries has their own legislative bodies for making laws so, congress can not interfere with that.
Hence, the correct answer is "-The whole country".