What statement is true about prohibition?
a. the laws were successful in changing american habits.
b. illegal drinking and production of alcohol became common.
c. people in america completely gave up drinking alcohol.
d. law enforcement was successful in shutting down most speakeasies.

B. Illegal drinking and production of alcohol became common.

Explanation:

The prohibition era in the USA (in the majority of states, dating from 1920 to 1933), prohibited the production, transportation, and sale of alcoholic beverages in all of the USA. This caused the apparition of speakeasies or places where alcoholic beverages were consumed illegally; however, despite the prohibition, these places did not disappear, but in many ways, they even thrived. In the aftermath of this era, illegal production and illegal consumption of alcohol became a common phenomenon.  

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explanation: