Final answer:
The region inhabited by Dutch colonists, known as Afrikaners, is represented by B. Region B. Afrikaners settled in South Africa and after moving inland, created the Transvaal Republic and the Orange Free State.
Step-by-step explanation:
The letter that represents the region inhabited by Dutch colonists, known as Afrikaners, is B. Region B. The Dutch colonists initially settled in the southern part of Africa during the mid-1600s to establish a settler colony, rather than a mere trading post. They were interested in setting up a community of farmers that could support the fleets traveling around the Cape of Good Hope on their way to the East Indies. When the British gained control over the territory from the Dutch during the Napoleonic period, many Dutch settlers, or Afrikaners, moved further inland, which led to the Great Trek, and established the independent republics of Transvaal and the Orange Free State, while leaving the Cape Colony to the British.