Answer:
He used various chisels to shape the figure.
Explanation:
I'm not 100% sure this is true but I remember reading about his works and how most sculptors created their works. I do know sculptors (especially back then) used chisels to shape the figure's body and other areas. So I do believe the first one is the answer you are looking for.
Sorry if anything is wrong, but let me know how it goes if you didn't already answer :)
False the history of art continues on and doesn't end with the demise of the conquest of Contsantinople