The correct option is D The Bushmen
The 'Bushmen' are the oldest inhabitants of southern Africa, where they have lived for at least 20,000 years. They live in the vast expanse of the Kalahari desert. The Bushmen are hunter-gatherers, who for thousands of years supported themselves in the desert through these skills. They hunt - mainly various kinds of antelope - but their daily diet has always consisted more of the fruits, nuts and roots which they seek out in the desert.