Read the map. A map titled Physical Features of East Asia. A key shows Lowlands in green, Highlands in yellow, and mountains with brown triangles. China is surrounded by the following countries: India, Pakistan, Afghanistan, Kazakhstan, Mongolia, North Korea, South Korea, Laos, Thailand, and Bangladesh. The Yellow River is to the north and the Yangtze River is to the south in central China. The Himalayas are on the south and southeast of the Plateau of Tibet while the Qin Mountains are on the northeast side.

Which geographical feature separates China and Mongolia?

Gobi Desert
Loess Plateau
Eastern Steppe
Manchurian Plain