The correct answer is D. All of the above.
The Sutlej River is a major river in northern India and Pakistan. It is the longest tributary of the Indus River. The Sutlej River originates in the Himalayas in Tibet. It flows through the Indian states of Himachal Pradesh, Punjab, and Haryana, and the Pakistani province of Punjab. The Sutlej River joins the Indus River near Mithankot in Pakistan.
The Spiti River is a tributary of the Sutlej River. It originates in the Himalayas in Tibet. It flows through the Indian state of Himachal Pradesh. The Spiti River joins the Sutlej River near Khab in Himachal Pradesh.
The Baspa River is a tributary of the Sutlej River. It originates in the Himalayas in Himachal Pradesh. It flows through the Indian state of Himachal Pradesh. The Baspa River joins the Sutlej River near Sarahan in Himachal Pradesh.
The Soan River is a tributary of the Sutlej River. It originates in the Himalayas in Himachal Pradesh. It flows through the Indian state of Punjab. The Soan River joins the Sutlej River near Harike Barrage in Punjab.