The Difference Between Stem-Cell Transplants and Regenerative Stem-Cell Therapy Is

The difference between stem-cell transplants and regenerative stem-cell therapy is that

A) stem-cell transplants involve stem cells differentiating into the type of cell they came from, while regenerative stem-cell therapy seeks to induce stem cells to become any type of cell.
B) regenerative stem-cell therapy involves stem cells differentiating into the type of cell they came from, while stem-cell transplants seek to induce stem cells to become any type of cell.
C) stem-cell transplants have already been successful, while there has not yet been a successful instance of regenerative stem-cell therapy.
D) regenerative stem-cell therapy has already been successful, while there has not yet been a successful instance of a stem-cell transplant.
E) stem cells used for transplants come from embryonic cells, while stem cells used for regenerative therapy come from adult cells.