The correct sequence of these rivers from North to South in India, as per the option, is Shyok, Zaskar, Spiti, Satluj (Option 2).

Shyok River is a tributary of the Indus River, originating in the Siachen Glacier. It flows in the northernmost part of India (Jammu & Kashmir), hence it`s first in sequence.

Zaskar River is a tributary of the Indus river and is located in the Ladakh region, which is also in the northern part, but slightly south of Shyok.

Spiti River is a tributary of the Sutlej River, flowing through the Spiti valley in Himachal Pradesh, which is located south of both the Shyok and Zaskar rivers.

Lastly, Satluj River, which originates in Tibet but flows mainly in India, is the southernmost among these rivers.

Option 1 is incorrect as Spiti is south of Zaskar. Option 3 is also incorrect as Zaskar is not the northernmost, and Satluj is not north of Spiti. In option 4, Zaskar is not the northernmost and Shyok is not south of Sat