Which of the Following Statements About an Arbitrator Is True

Which of the following statements about an arbitrator is true?

A) The arbitrator usually encourages the disputing parties to compromise on their demands,but cannot force the parties to do so.
B) The arbitrator has the unilateral power to issue a binding decision on the disputing parties,regardless of whether the parties agree with the decision.
C) Arbitration has no discovery so a case that may have been settled during a conventional lawsuit might drag on.
D) The arbitrator role is only useful before a lawsuit is filed by the parties.