The correct answer is A) bronze.
The new material that Neolithic people invented and use for making tools was bronze.
Humans of this time learned to create new tools for self-defense and to work the farm fields and dig the soil. Historians consider that humans in the Middle East, the Sumerians, were the first ones to work with bronze tools. They added tin to copper to produce bronze, a metal harder than copper and more durable.
Italian and Jewish immigrants played a major role in the era of immigration between "<span>c. 1880 and 1920," although of course some immigrants from both of these groups came to the US before this period. </span>
The correct answer is A
Richard Nixon