It has been argued that the Quakers tradition of mediation has served as the basis for modern mediation in the United States. Which of the following statements is true about the Quakers mediation?

a. Work to change perception of self; use of power; work to change perception of others.
b. Use of power; work to change perception of conflict; work to keep perception of self.
c. Work to change perception of self; work to keep perception of others; work to keep idea of conflict.
d. Genuine concern for parties; powerlessnees; work to change perception of conflict.

d. Genuine concern for parties; powerlessnees; work to change perception of conflict.