You are the Project Manager, leading a project team made up of staff from Engg, Mfg, Mktg departments of the company. At a regular team meeting, the team is discussing which Project Mgt software should be used on the project.  There is a variety of opinion and nobody wans to give in, in this situation, what conflict resolution technique should you use >

a) smoothing

b) Postponing

c) Compromising between all existing opinions

d) Controlling the problem