Develop a professional MS PPT presentation on the topics of the **diagnosis phase* and the consultant-client (C-C) relationship during the *diagnosis phase** in the consulting process.

At minimum, the professional MS PPT presentation should cover the following topics: 1) the purposes of diagnosis, 2) the challenges of diagnosis, 3) the various sources of data and data analysis techniques in the diagnosis, 4) the diagnosis feedback to the client, and 5) the consultant-client (C-C) relationship during various steps of the diagnosis phase