Which amendment repeals the 18th Amendment and empowers Congress to regulate liquor industries?

• A. Amendment 20
• B. Amendment 21
• C. Amendment 22
• D. Amendment 23

Answer: (B)

This question tests knowledge of how Prohibition ended and who now regulates alcohol. The amendment that repealed the 18th Amendment and allowed regulation of liquor industries is the one that formally rescinded nationwide Prohibition and established that Congress and the states have authority to enforce this article by appropriate legislation. In practical terms, this means the federal government can regulate interstate aspects of the alcohol trade—such as transportation, licensing, and taxation—while states retain primary regulatory power within their borders. The other amendments listed address different issues: changing when Congress and the president begin their terms, setting presidential term limits, or granting the District of Columbia a role in presidential elections. They do not repeal Prohibition or set up liquor-regulation powers.