Mr. A and Mr. B are contending parties to a lawsuit involving the division of their inheritance from their grandmother. They wish to settle their case out of court. Mr. A and Mr. B engage in discussions and bargaining with the presence of their attorneys and finally conclude that Mr. B keeps 60 percent of the inheritance while Mr. A gets the remainder. In this scenario, the ________ method of alternative dispute resolution is used.

Negotiation

Arbitration

Mini-trial

Mediation