It was approved by the Congress in 1972.
Specifically, it happened on March 22 of this year. Congress set a deadline for state ratification for 1979, but this deadline was not met.
The answer to this question is letter c
Barbarous,destructive,vandal,offensive, and disparaging.
Originally colonized by the French during the 18th century, it became U.S. territory as part of the historic Louisiana Purchase in 1803, and was admitted to the union in 1812. Louisiana's capital city is Baton Rouge