Which Describes the Doctrine of Res Judicata

Which describes the doctrine of res judicata?

A) Appeals to a court decision are prohibited,and a plaintiff would be required to stand before the Supreme Court.
B) Final judgment of a competent court is conclusive upon the parties in any subsequent litigation involving the same cause of action.
C) Parties of a lawsuit have the option of bringing a subsequent action raising the same claim or demand.
D) Plaintiff can re-prosecute the defendant if a valid final judgment was administered by the court.