The primary difference between the Acheulean and Mousterian technologies is:. A) The focus on hafted tools in the Acheulean. B) The differentiation of retouched tools in the Mousterian. C) The shift to flake tool industries in the Mousterian. D) The move away from flake tool industries in the Mousterian.

C) The shift to flake tool industries in the Mousterian

Explanation: The Mousterian industry followed the Achulean industry, the Achulean industry employed the used of lavallios (stone). The Mousterian saw shift to the use of flake tools, they were two types of flake tools

1. Point

2. Scrapper

The point tool was made up of stone with two trimmed and sharp ends meeting at a point, this tool was used to cut, and hunt.

The scrapper tool functioned as a knife for cutting.

industry had made the u.s. the richest nation in the world at this time. the second industrial revolution caused growth in industry and transportation, which allowed increased trade between nations.