In the negotiating parties cooperatively develop multiple-deal packages while building a productive long-term relationship. multiple choicearbitrationpeer reviewmediationdevil’s advocacyadded-value negotiation

Added value negotiation.

Explanation:

In an added-value negotiation, both parties try to achieve a common goal that benefits both of them. Still, it's a negotiation, in which both parties have to persue what most benefits them, not the other person. It's what sometimes is called "win-win" scenarios. The "added" value would be the building of a productive relationship within the parties.

the correct answer on edgen is:

(c.) prevent the spread of communism.

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