The spread of new metal technologies in the neolithic era was mostly caused by which group of people?

The goldsmith reached a state at the level of primary Fine Arts in Greece. To the manufacturing processes of the embossing, chiseled and filigree already known in the previous civilizations, the granules were added by the Greek artists, sowing the surface of the piece with gold beads by an unknown procedure. But long before the Greeks already practiced the Egyptians because they have been found in jewels of dynasty XII

Explanation:

answer; ///i believe its (b); ///the president will sign it or veto the check first good luck

i dont no the claim so it's hard to answer but i think he would go to the people to decide. : ) ; )