Final answer:
No African leaders from Sub-Saharan Africa were present at the 1884 Berlin Conference where the colonial boundaries for the region were determined.
Step-by-step explanation:
The question asks how many African leaders were present when the current boundaries of the countries of Sub-Saharan Africa were determined. During the 1884 Berlin Conference, which largely determined Africa's colonial boundaries, no African leaders from Sub-Saharan Africa were present. The conference was attended by representatives from 13 European powers and the United States. The only African representation was from the Ottoman provinces along the Mediterranean. As a result, the boundaries were set with no consideration for the ethnic, linguistic, or religious groupings of the indigenous people. The administrative boundaries often cut across existing political and ethnic lines, leading to long-term conflict and civil unrest.