Answer:
c. the process whereby two or more parties work toward an agreement.
Step-by-step explanation:
This is the best definition of negotiation. Negotiation refers to a process in which two or more parties participate with the purpose of reaching an agreement. Although the parties know that they do not want the exact same thing, they both express their willingness to compromise. On the other hand, when the parties bring an extra person to participate in the negotiations, this is usually called arbitration.