Which area in Africa is known as the source of the Nile River?

The source of the Nile River is primarily recognized as being located at Lake Victoria. Lake Victoria is the largest lake in Africa and is situated at the intersection of three countries: Uganda, Kenya, and Tanzania. It serves as the main reservoir for the Nile, with the river flowing northward to eventually empty into the Mediterranean Sea.

Unyamwezi is a region in central Tanzania and is not associated with the source of the Nile. Kilimanjaro, while notable for being the highest mountain in Africa, does not pertain to the Nile's origins. The Sahara, known as the vast desert in northern Africa, also does not serve as the Nile's source.

The correct answer highlights Lake Victoria's pivotal role in the hydrology of the Nile River, which has significant historical and geopolitical importance in Africa.