B 68% of the fresh water on the earth is stored in the polar regions in the form of ice and snow. Antarctica is the continent with the richest fresh water resources in the world, so B does not meet the question;
C Asia, the continent with the widest latitude in the world. So c meets the meaning of the question;
D. 1680 In August, scientists measured the extreme minimum temperature of -88.3℃ at the Eastern Station of the Soviet Union. Antarctica is the coldest continent in the world, so D doesn't fit the question.
So choose: C.