Questions: More than the backdrop to Al Capone and speakeasies, Prohibition was indeed a serious federal effort to curtail alcohol consumption. Prohibition was enforced as authorities often targeted and African American communities. In addition to law officials, the also took it upon itself to enforce Prohibition laws. consistently* Mafia* National Women's Party* Ku Klux Klan* wealthy citizens* unequally* poor citizens*

The answer is: Ku Klux Klan

Explanation:

1. Ku Klux Klan: The Ku Klux Klan (KKK) took it upon itself to enforce Prohibition laws. During the Prohibition era, the KKK was active in promoting and enforcing Prohibition, often targeting immigrant and minority communities, including African Americans, whom they associated with illegal alcohol trade.

2. Mafia: Incorrect. The Mafia was involved in the illegal production and distribution of alcohol, not in enforcing Prohibition laws.

3. National Women's Party: Incorrect. The National Women's Party was primarily focused on women's suffrage and rights, not on enforcing Prohibition.

4. Wealthy citizens: Incorrect. While some wealthy citizens may have supported Prohibition, they were not known for enforcing the laws.

5. Poor citizens: Incorrect. Poor citizens were more likely to be affected by the enforcement of Prohibition rather than being enforcers themselves.

The text also suggests that Prohibition was enforced unequally, often targeting African American communities, which aligns with historical accounts of discriminatory enforcement practices during that era.