Correct Option: D

The Caspian Sea is generally regarded as the world’s largest lake, but it contains an oceanic basin (contiguous with the world ocean until 11 million years ago) rather than being entirely over continental crust. Lake Superior is the largest freshwater lake in the world in area (if Lakes Michigan and Huron are taken separately), and the third largest in volume, behind Lake Baikal in Siberia and Lake Tanganyika in East Africa.