What inference can best be drawn about the Folsom people from the spear points found at the Cooper site in Oklahoma?

A: They were mobile
B: They killed large animals
C: They were master craftsmen
D: They made spears from local materials

B: They killed large animals

The spear points found at the Cooper site in Oklahoma are believed to have been used for hunting large animals, such as mammoths or bison. This indicates that the Folsom people were skilled hunters who relied on hunting for their sustenance.