Question

which of the following encouraged the naacp to become involved with reverend oliver brown’s lawsuit against a board of education in kansas?
the southern manifesto against desegregation
the supreme court’s decision in plessy v. ferguson
the election of senator harry byrd to the us senate
the supreme court’s decision in sweatt v. painter

Explanation:

The NAACP sought to challenge school segregation, and Sweatt v. Painter (1950) was a key Supreme Court case where the Court ruled that a separate law school for Black students was unequal, establishing a precedent that encouraged the NAACP to take on Brown's case. The Southern Manifesto was a later protest against desegregation, Plessy v. Ferguson upheld "separate but equal," and Harry Byrd was a segregationist opponent of desegregation, so these do not fit.

Answer:

the Supreme Court's decision in Sweatt v. Painter