The West Coast Coastal Plain is known for which precious stone?

diamonds

Located near the boundary between the West Gulf Coastal Plain and the Ouachita Mountains, this park has the only known crater of diamonds in the United States and attracts thousands of visitors each year. The largest diamond ever found at this site since the park was established in 1972 measures 16.37 carats.

Explanation:

meep it right

option b, all states follow similar rules and legal process is the right answer.

the 14th amendment in the constitution of america was enacted in july 1868, which include the citizenship, due process, and the equal protection under the law. this amendment was a response to the issues related to former slaves following the american civil war.

the citizenship clause granted citizenship to all persons born or naturalized in the u.s,.   due process of clause asserted that states may not deny any person "life, liberty or property, without due process of law and the equal protection clause declared that a state may not deny to any person within its jurisdiction the equal protection of the laws. the above mentioned excerpt from the constitution of the united states, ensures the citizenship,due process, and equal protection under the law.