Which of the Following Statements Concerning Negotiation Conflict Is incorrect

Which of the following statements concerning negotiation conflict is incorrect?

A) The conflict may be seen from both negotiators' points of view or may be seen by only one.
B) Non-negotiation tactics may be used to try to change the attitudes of the other side.
C) Some conflict may be due to the negotiator's perceptions of reality and his or her ability to block out information.
D) The conflict may be solved by the negotiator's repeating himself/herself with the same argument.