contestada

A green-hued statue of a woman holding a book next to her hip and a torch extended above her head. She is wearing a crown and a robe.
The Statue of Liberty (pictured above) was made of a sheeting of pure _____(1)_____ and was made using a metalworking process known as _____(2)_____.
a.
(1) gold; (2) milling
b.
(1) copper; (2) joining
c.
(1) bronze; (2) forming
d.
(1) copper; (2) casting