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the answer would be C. bronze. bronze is mainly made up of copper, and is a mixture of other metals as well :P
Hello,

The answer is option C "bronze".

Reason:

There are many types of alloys for copper including: aluminum, arsenic, manganese, phosphorous, silicon but the most common ally of copper is bronze therefore the answer is option C.

If you need anymore help feel free to ask me!

Hope this helps!

~Nonportrit

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