The correct answer is D. All of the above. China is isolated from the rest of the world by several physical characteristics, including mountains, deserts, and plateaus. The Himalayan Mountains to the south, the Gobi Desert to the north, and the Tibetan Plateau to the west all serve as natural barriers that have helped to isolate China from the rest of the world. These physical features have played a significant role in shaping China's culture, economy, and history.