Concept:The Great Trek was the mass migration of Boers from British-ruled Cape Colony into the interior of South Africa.
Explanation:The Great Trek, also called the Groot Trek in Afrikaans, took place between 1835 and the early 1840s.
About 12,000 to 14,000 Boers left Cape Colony in South Africa during this period.
They moved because they opposed British government policies and wanted fresh pasturelands.
This movement shaped the history of South Africa and led to the founding of new Boer republics.
The event did not occur in Liberia, Sierra Leone, or Egypt.
Answer:A. South Africa