Which of the following formalized colonial penetration into Africa?

The Berlin Conference was the formalized colonial penetration into Africa. It was a meeting of European colonial powers held in Berlin, Germany in 1884-1885. During the conference, the European nations divided up Africa among themselves, with little regard for the existing ethnic and cultural borders of the African nations. The conference marked the beginning of the "Scramble for Africa," as European powers rushed to claim as much of the continent as possible for themselves. The decisions made at the Berlin Conference had a profound and lasting impact on Africa, shaping its borders and political landscape for decades to come.