Red Construction Co$.$ has a dispute with its subcontractor Reliable Plumbing and Heating Solutions Inc. over Reliable's work on a $20-$story office building that was rejected by the building inspector. Red wants the matter resolved quickly since the parties have $10$ other ongoing projects and the dispute is holding up work on the building. Both parties want to preserve the relationship. Which of the following dispute resolution methods is best in this situation?

Litigation

All of these are as good as another at preserving the relationship

Mediation

Arbitration