Why was the decision in Dred Scott v. Stanford so significant?

Explanation:

Sandford, a decade-long search for liberty by an enslaved black man named Dred Scott. The litigation continued through multiple tribunals and finally entered the U.S. The Supreme Court, whose ruling incensed abolitionists, brought the anti-slavery campaign traction and served as a turning stone to the Civil War.

the answer is b: the religion they practice.

here's why:

there were many different native american tribes and those with similar characteristics formed a main tribe or nation. each had its own language, religion and customs.