What Was Thstrategy Appliein Cloning Thfirst Animal in a Laboratory

What was thstrategy appliein cloning thfirst animal in a laboratory?

A) A two-week-old embryo was implanted in a surrogate sheep mother.
B) Two adult sheep cells were fused and transplanted into a surrogate sheep mother.
C) A sheep egg was fertilized in vitro, and then the early embryo was transplanted in a surrogate sheep mother.
D) An adult stem cell of a sheep was grown in vitro and transplanted to a surrogate sheep mother.
E) The nucleus of an unfertilized sheep egg was removed and replaced with the nucleus of a cell taken from the udder of a different sheep.