Final answer:
Copper pennies were the first coins to be made totally from Australian metals on Australian soil.
Step-by-step explanation:
The first coins to be made totally from Australian metals on Australian soil were c) Copper pennies. These coins were minted in 1911 and were made from pure Australian copper. Before these copper pennies were introduced, Australia had been using British coins as its currency.
The first coins to be made entirely from Australian metals on Australian soil were copper pennies. This historic milestone took place in 1919 when the Melbourne Mint produced the first Australian copper pennies. Prior to this, Australia relied on coins minted in London or other locations within the British Empire. The decision to mint coins locally using Australian metals, in this case, copper, was a significant step towards establishing greater economic independence and reflecting Australia's growing national identity. The copper pennies were part of a broader effort to have a more autonomous currency system, showcasing the nation's capacity to produce its own coinage.