Plessy v. Ferguson ruled that "Separate but equal" public facilities were constitutional, thus permitting the practice of segregation under Jim Crow laws in the South and separate facilities for African Americans.
Therefore, the correct answer is C, that the decision allowed Southern states to legally segregate facilities and institutions.
The Seneca Falls Convention was one of the first major women's rights conventions, so the answer is "b. The Declaration of Sentiments was
<span> introduced</span>"