Why Did the Brown Decision Not Deal Immediately with the Issue

Why did the Brown decision not deal immediately with the issue of the implementation of desegregation?

A) To gain a unanimous decision, the chief justice had to compromise.
B) The chief justice held that it was not under the jurisdiction of the Supreme Court to rule on such matters.
C) It was understood that the states would address this issue on their own.
D) Thurgood Marshall opposed federal intervention, favoring instead independent local action.