Reproductive and Therapeutic Cloning Differ Because

Reproductive and therapeutic cloning differ because

A) Reproductive cloning uses two egg cells, while therapeutic cloning involves only one egg cell.
B) therapeutic cloning uses two egg cells, while reproductive cloning involves only one egg cell.
C) both methods involve implantation into a uterus for cell division, but in therapeutic cloning, the cell mass is removed from the uterus.
D) reproductive cloning involves implantation of the egg cell into a uterus, while therapeutic cloning is carried out in a laboratory.
E) reproductive cloning has never been successful on any organism, while therapeutic cloning has had great success.