What is the distinctive landform name for the vast, flat-topped limestone plateaus of the Western Desert, such as the Gilf Kebir, that rise abruptly from the surrounding sand sea?

• A Erg
• B Wadi
• C Hamada ✓
• D Sabkha

A hamada (or hammada) is a barren, elevated desert plateau of exposed bedrock — the Gilf Kebir and the Abu Ras plateau in Egypt's far southwest are classic examples of this hyper-arid landform, scoured clean of sand by wind and almost entirely devoid of vegetation or mobile dunes.