On What Basis Has the U

On what basis has the U.S.Supreme Court put restraints on the implementation of majority-minority districts?

A) The resulting districts would become so geographically odd that representatives would not be able to easily travel through them.
B) The resulting districts would favor Republican more than Democratic candidates.
C) The resulting districts would favor Democratic more than Republican candidates.
D) State legislatures would effectively remove independent or other third-party candidates from competition.
E) Though state legislatures may take race into account, if it becomes the overriding motive in drawing districts then white voters' constitutional rights would be violated.