Lake Victoria is located near Uganda, Kenya, and Tanzania. Therefore, based on the labels provided on the map:
- A is a river through the Congo
- B is a lake near Uganda and Kenya
- C is a lake on the border of Tanzania
- D is a river near Zambia and Zimbabwe
- E is a lake near Malawi
- F is an island in the Indian Ocean
The correct answer would be B. letter B, as this corresponds to Lake Victoria near Uganda and Kenya.