Which was an effect of the Supreme Court case Plessy v. Ferguson? A. It reaffirmed and strengthened Jim Crow laws in the South. B. It weakened and outlawed Jim Crow laws in the North. C. It caused increased migrations of people from the North. D. It reduced the frequency of racial violence in the South.

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".

i’m   sure probably just geuss and see which one you can get right, i’m pretty sure it is the combination of goods and services