What Technological Advantage Led to the Vikings' Successful Conquests and Trade

Multiple Choice

What technological advantage led to the Vikings' successful conquests and trade?

A) sophisticated longships that could travel up rivers
B) superior metallurgy techniques that produced stronger and more durable weapons
C) the ingestion of medicinal herbs that eliminated pain during battle
D) the development of gunpowder technologies that they had learned from merchants along the Silk Road