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 :)
The materials that were used to construct the pyramid by I.M. Pei was steel and glass. I'm sorry if it wasnt much help but that's all I could find on it.
Ummm, I think you wanted to add options but something that could be used to help clarify is rereading or finding words that you dont understand and search them in a dictionary.
hope this helps