Concept:The Mfecane was a period of intense conflict and forced migration in southern Africa, caused mainly by competition for limited land and resources.
Explanation:The Mfecane, also known as the Difaqane, describes the widespread upheaval that affected southern African societies in the early 19th century.
Various Nguni communities faced growing pressure on available land, water, and grazing pasture.
Population growth and environmental changes made these resources increasingly scarce.
This scarcity intensified rivalry between different chiefdoms and clans.
As each group fought to secure enough resources for survival, full-scale warfare broke out across the region.
The conflict contributed to the rise of powerful military states, such as the Zulu kingdom under Shaka.
Many communities were defeated and displaced, triggering large-scale migrations and social disruption.
Displaced groups often clashed with other societies in their path, spreading the violence further.
Thus, while other factors added to the crisis, the central cause of the Mfecane was competition over scarce resources.
Answer:The correct answer is B: Competition over scarce resources.