What is the most important practice in using family meetings to resolve internal conflicts?

a$.$ Active, two$-$way communication to address the sources of conflict

b$.$ Reminding all family members to manage their emotions and act objectively for the good of the whole

c$.$ Avoiding secrecy to make sure that conflict doesn't arise from lack of information

d$.$ Maintaining equality among later generations of family members in hiring, promotions, benefits, and other opportunities