Western cape, south Africa
The Ice Ages shaped and sculpted the face of the Earth. Continents that were once connected by land bridges had shifted and separated during the Ice Ages. Therefore without the Ice Ages, Earth would look significantly different, and some of the natural beauties like Niagra Falls would not exist.
The polar ice capes, the change in genetics of certain animal fossils (growing more or less hair, etc. etc.)
I think C., or the third one, would be the correct answer
