What Did the Justices Rule in Shelley V

What did the justices rule in Shelley v. Kraemer (1948) ?

A) Racially restrictive covenants on housing could not be enforced by courts.
B) Universities and professional schools had to desegregate.
C) Public universities were required to admit women, but private colleges could still segregate on the basis of gender.
D) Busing in order to integrate public schools was unconstitutional.
E) Busing in order to integrate public schools was constitutional.