The largest freshwater lake in the world is [C] Baikal. Located in Siberia, Russia, Lake Baikal holds about 20% of the world’s unfrozen freshwater reserve, making it the largest by volume. It stretches over 31,000 square kilometers and reaches depths of over 1,600 meters. Lake Victoria [A] is the largest lake in Africa, Lake Superior [B] is the largest by surface area among the Great Lakes, and Lake Michigan [D] is the second-largest among the Great Lakes. However, in terms of freshwater volume, none surpass Lake Baikal.