The correct answer is - B. San Bushmen.
The San San people, more commonly known as Bushmen, are African people that are part of the Khoisan group of people. They inhabit the territory of the Republic of South Africa, Namibia, Botswana, and Angola.
The Bushmen are people that still live like the people used to live before the agricultural revolution, thus they are hunter-gatherers. They use a hunting technique called ''persistent hunting'', which is practically running after an animal until it overheats and losses energy and than collapses, when the San Bushmen make their move and kill it. They are well known for their running abilities, and are considered the people that can run the most in the world, very often being recorder running for 30, 40 ,50 km without stopping under the scorching sun during the middle of the day.