Answer:
Establish objective standards for agreeable outcomes.
Explanation:
Principled negotiation is the interest-based technique to negotiation which focuses mainly on conflict management as well as conflict resolution. Principled negotiation make use of integrative approach in finding an outcome which is mutually shared.
It is more synonymous to use the phrase, "win-win".
In the context, as Jim, Clara, and Natalie are discussing the outcomes of the negotiation which they all can share, they are fulfilling the following aspect of the principled negotiation --
Establish objective standards for agreeable outcomes.