The Sutlej River originates from Lake Rakshastal in Tibet, near Lake Manasarovar, and flows through India and Pakistan.
Step 1: Geographic facts
Lake Rakshastal is a saltwater lake adjacent to the freshwater Lake Manasarovar.
Step 2: Importance of origin
Knowing the source helps in understanding river systems and hydrology of the region.
Thus, option (D) is correct.