Which One of the Following Is NOT a Good Means

Which one of the following is NOT a good means of resolving interdepartment conflict among marketing, finance, and production personnel?

A) Cross-training executives so that marketing personnel have had experience in finance and production (and vice-versa)
B) Allowing personnel to resolve conflicts through bargaining and negotiating
C) Setting overall objectives that reflect each department's objectives
D) Developing interfunctional task forces (such as new product planning teams) with personnel from different functional areas