Map: "The Colonization of Africa, late 1800s."

How is this map related to African issues in the mid-to-late-20th century? A) The divisions led to an new beginning of trade to control the new areas. B) The divisions led to an end of the fledgling "Pan-African" unity movement. C) The divisions led to ethnic conflicts following the independence of many African countries. D) Nationalist movements resulted in strengthening of colonial power throughout the continent.