From north towards south, which one of the following is the correct sequence of the given rivers in India?

The Shyok is a high-altitude tributary in Ladakh (northernmost among the four), draining the Nubra–Shyok region before joining the Indus system [1]. The Zanskar is also a Ladakh tributary but lies south/east of the Shyok and joins the Indus near Nimu (Leh region), placing it south of Shyok [2]. The Spiti River flows in Lahaul–Spiti (Himachal Pradesh) and meets the Sutlej further south, so it lies south of the Zanskar. The Satluj (Sutlej) rises near Mansarovar and cuts through the Zanskar/Greater Himalaya to enter Himachal, making it the southernmost of the four in this list [3]. Thus the north→south order is: Shyok → Zanskar → Spiti → Satluj (Option 2).

Sources

1. [1] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 3: The Drainage System of India > 1. The Indus (Sindhu) > p. 9
2. [2] https://en.wikipedia.org/wiki/Zanskar_River
3. [3] Geography of India ,Majid Husain, (McGrawHill 9th ed.) > Chapter 3: The Drainage System of India > The Satluj (Satadru or Satudri) > p. 10