The first metal used by man was A. iron B. copper C. gold D. bronze

The first metal used by man was copper. It was used in the Middle East as early as 8000 BC. Copper is a relatively soft metal, so it was not used to make tools or weapons until it was alloyed with tin to create bronze. Bronze is a much harder metal than copper, and it was used to make tools and weapons for thousands of years. Iron was not used until much later, around 3000 BC. Iron is a much stronger metal than bronze, and it eventually replaced bronze as the primary metal used for tools and weapons. Gold is a very soft metal, and it was not used for tools or weapons. It was used for jewelry and other decorative items.