AIn the Himalayas, in the west of the Tibetan plateau
BAt the mouth of the Yangtze river
CNorth Vietnam
DLaos
Correct Option: 1
Explanation:
In the Himalayas, in the west of the Tibetan plateau
The Chang Tang straddles the Tibet-India border. The region is a 700,000 km2 almost pristine area, largely uninhabited, of mountain, widely scattered brackish lakes, and rolling steppe. The Changtang grassland has been designated a Global 200 Ecoregion by WWF, and is listed as a priority conservation area in Chinas National Biodiversity Strategy and Action Plan.