Which of the following was NOT part of Stan's work in existential therapy?

The correct choice is based on an understanding of the themes and focus areas within existential therapy. In existential therapy, the emphasis is often on personal responsibility, authenticity, and the exploration of individual potential. Exploring a client’s feelings of loneliness, confronting their responsibilities concerning their behaviors (such as drug and alcohol use), and delving into their human potential are all fundamental components of this therapeutic approach.

Engaging with relationships, including those with family members, is part of therapy, but when discussing inauthentic relationships specifically, the existential focus might shift towards personal authenticity, how one relates to themselves first, and their broader sense of being. While addressing inauthentic relationships can be relevant, it may not center as specifically on existential concerns. Hence, the work with Stan does not likely prioritize this aspect in the same way as the other options mentioned, which directly relate to existential themes like responsibility and potential.