In Solution-Focused Therapy, the Best Approach to Use with 'Complainants

In Solution-focused therapy, the best approach to use with 'complainants' is to:

A) respect them, try and establish rapport, and hope they will become customers eventually
B) assign them activities where they can focus on exceptions, respect them, and hope they will become customers eventually
C) engage them in solution oriented conversations and co-create assignments to reproduce behaviors that are exceptions to the problem
D) none of the above