metalworking began \na. during the upper paleolithic period.\nb. with the introductions of bronze, an alloy…

metalworking began \na. during the upper paleolithic period.\nb. with the introductions of bronze, an alloy, or mixture of tin and copper, changed the peoples of europe.\nc. out of a need for stronger weaponry to used against the increasingly aggressive vikings.\nd. with, and because of, all of the above circumstances.\nplease select the best answer from the choices provided
Answer
Brief Explanations:
Metal - working didn't start with Vikings. Bronze came later. It began in Upper Paleolithic.
Answer:
A. during the Upper Paleolithic period.