The correct option is B Saraswati
Ghaggar is remnant of ancient Saraswati river. The Saraswati river was one of the Rigvedic rivers mentioned in the Rig Veda and later Vedic and post-Vedic texts. The Ghaggar rises in the Siwalik (Shiwalik) Range, in northwestern Himachal Pradesh state and flows about 200 miles (320 km) southwest through Haryana state, where it receives the Saraswati River.