A house made of ice is called .

Some areas, such as the Arctic and Polar regions, are totally covered in snow and exceedingly cold. 

People in the region created houses out of blocks of snow, usually in the shape of a dome. The dome shape is intended to assist keep the space warm from the inside. 

A snow house is another name for an igloo.

Final Answer:Hence, Option (C) is correct i.e. Igloo