Why is bronze considered an alloy?

a. Bronze can be shaped to make tools.

b. Bronze is a hard, golden-brown metal.

c. Bronze is made of the metals copper and tin.

d. Bronze has been used by people for millennia.

The correct option is C) Bronze is made of the metals copper and tin.

Explanation:

An alloy can be described as a substance which is made by melting two or more elements. Usually the alloys are made by combining the metal elements. In other words, an alloy is the formation of an impure substance by mixing chemical elements.

The statement C best explains the formation of the alloy, bronze. Bronze is made by combining of metal elements such as copper and tin. Hence, the correct option is C.