71 There are hard causes of conflict (e.g. conflicting schedules) and soft causes. Soft causes are as important as hard causes. Soft causes include diversity of disciplinary expertise, _____, and the project manager's power of reward and punishment.A. Per

71 There are hard causes of conflict (e.g. conflicting schedules) and soft causes. Soft causes are as important as hard causes. Soft causes include diversity of disciplinary expertise, _____, and the project manager's power of reward and punishment.

A. Performance tradeoffs

B. Ambiguity of roles

C. Administrative procedures

D. Determining earned value