The correct option is D Sheep
Cloning is the production of an exact copy of a cell, any other living part, or a complete organism. Cloning of an animal was successfully performed for the first time by Ian Wilmut and his colleagues at the Roslin Institute in Edinburgh, Scotland. The first successfully cloned animal was named as Dolly (a sheep). Dolly was born on 5th July 1996 and was the first mammal to be cloned.