Final answer:
Bronze is an alloy consisting of copper and tin, known for its hardness and increased use since the Bronze Age for various items like weapons and decorative objects.
Step-by-step explanation:
The metal which is combined with copper to make the alloy bronze is tin. Historical records and accounts demonstrate that since ancient times, bronze has been a crucial material for making tools, weapons, and decorative objects. The creation of bronze represents a significant technological advancement during the Bronze Age due to its superior hardness and durability compared to pure copper or tin.
In addition to bronze, there are other notable copper alloys such as brass, made of copper and zinc, and cupronickel used in coinage. In the context of the given options, tin is the correct answer for creating bronze.