J. G. Sutton catalogues that the entire region now known as the Sahara was wet and strewn with
lakes and rivers. He further argues that around that time, that region, the Sahara, was characterized by similarities of race, language, and material culture. These items of “material culture” included pottery, fishing lines, baskets, canoes, rafts, dugouts, and war implements made from sticks and stones. The correct answer is B.