Of the Following Techniques Used in the Cloning of Dolly

Multiple Choice

Of the following techniques used in the cloning of Dolly the sheep, which one was initially used by Briggs and King in their studies with frog embryos?

A) Transferring cells from one location to another on the embryo
B) Enucleating an egg
C) Arresting the cell cycle of the donor cells
D) Bisecting the embryo
E) None of the above