The supreme court case mclaurin v. oklahoma state regents ruled that separate but equal facilities were illegal in what public setting?

The McLaurin v. Oklahoma State Regents case of the Supreme Court established that separate but equal facilities were illegal with respect to the University of Oklahoma, which is a public university, therefore maintained by the State of Oklahoma. The ruling then prohibited segregation around higher education, based on the clauses of the 14th Amendment of the United States Constitution, which prohibits discrimination.

answer: d. an organization that fought for women's voting rights