Which type of consultation involves both consultant and consultee contributing expertise towards problem-solving?

The correct answer is the type of consultation that emphasizes shared input and expertise between the consultant and the consultee, allowing both parties to engage actively in the problem-solving process. In this model, the consultant does not simply provide answers or directives; instead, there is an interdependent relationship where each participant brings their own knowledge and skills to address the issue at hand. This collaborative approach enhances the quality of solutions as it integrates diverse perspectives and expertise for a more thorough exploration of the problem.

In contrast, the other options do not effectively represent this shared expertise dynamic. For example, a directive consultation would typically imply that the consultant leads the process and makes authoritative decisions, diminishing the collaborative nature of the engagement. Similarly, the terms "triadic-dependent" and "collaborative dependent" imply varying degrees of reliance on either party, which does not encapsulate the true interdependence central to the correct answer. Therefore, the essence of effective problem-solving through mutual contributions and shared expertise is best captured in the type of consultation being identified here.