Correct Option: A

Brahmaputra, Indus & Sutlej have their source of origins in Tibet. The Brahmaputra originates in the Angsi glacier, located on the northern side of the Himalayas in Burang County of Tibet as the Yarlung Tsangpo River. The Indus originates in the western part of Tibet in the vicinity of Mount Kailash and Lake Manasarovar. The source of the Sutlej is near Lake Rakshastal in Tibet.