Problem: The Yungang Grottoes and the Linfen Yu King City Ruins placemarks illustrate that A. people of the Loess Plateau have utilized rock-cut architecture. B. no vegetation grows on the Loess Plateau due to soil erosion. C. there is not an opportunity for tourism in a land with severe erosion. D. the Loess Plateau is uninhabitable. E. None of the answer choices are correct.