Answer:
The correct answer is option D, that is, the Great lakes.
Explanation:
A freshwater system, which comprises more than twenty percent of the obtainable surface freshwater on the Earth is known as the Great lakes. The formation of the Great lakes took place as a result of the glaciers retreating and progressing over the many years. A lake, which is formed by a glacier is considered as a glacial lake. The formation took place by the huge sheets of ice eroding the land and then occupying the vacant location with the glacier melt.
