Answer:
Segregation, by supporting the idea of "separate but equal"
Explanation:
Plessy v. Ferguson, 163 U.S. 537 (1896), was a landmark decision of the U.S. Supreme Court that upheld the constitutionality of racial segregation laws for public facilities as long as the segregated facilities were equal in quality – a doctrine that came to be known as "separate but equal".
It would be the "Ninth Amendment" that states that the rights in the U.S. Constitution are not the only rights that citizens possess, since the Founders wanted many rights to be reserved for the people and the states.
I am pretty sure that Assimilation is the adoption of another's culture
Sorry if this is wrong, but my best guess would be
"B: It has many seaports."
Jr.a declared that there could be no taxation without war.