Efforts to reach a dispute settlement through mediation will continue until
I. the parties agree to a resolution and execute a written settlement
II. the parties conclude that further efforts to mediate the dispute would be futile and declare the negotiations at an impasse
III. any party or the mediator withdraws from the mediation process for any reason
A) I only
B) I and II only
C) III only
D) I, II, and III
Answer: D