In Johnson V

In Johnson v.California,the Supreme Court reviewed California's unwritten policy of racially segregating prisoners each time they entered a new correctional facility,as a way of preventing gang-related violence.What was the Court's ruling,and why?

A) The policy was acceptable because it protected inmates and helped to ensure safety and security within the prisons.
B) The policy was unconstitutional because forced segregation violated the 8th Amendment prohibition against cruel and unusual punishment.
C) The policy was acceptable because it had been shown to significantly reduce the amount of violence caused by racial gangs in prisons.
D) The policy was unconstitutional because it did not serve a compelling state interest.