For each of the following situations describe in detail the step-by-step process that is necessary to achieve the desired results below or indicate otherwise if it is not possible. Take into account only the IRS check-the-box (entity status) regulations in your description and indicate the most efficient way to reach the desired result.

A. An existing C corporation wants to be taxed as a partnership.

B. A single member limited liability company (LLC) wants to be taxed as an S corporation (assume that the LLC otherwise meets all of the S corporation election requirements).

C. A four-member partnership wants to be taxed as a C corporation.