The correct answer is: B. Mandovi
Atal Setu is a bridge in Goa, India, that connects the capital city of Panaji to the northern part of the state. It is built across the Mandovi River. The bridge was inaugurated in 2010 and is named after former Indian Prime Minister Atal Bihari Vajpayee.
The bridge is 2.5 kilometers long and has four lanes. It is a major infrastructure project that has helped to improve connectivity in Goa. The bridge has also had a positive impact on the economy of the state.
The other options are incorrect because they are not rivers in Goa. Harmal is a village in Goa, Terekhol is a river in Goa that forms the border between Goa and Maharashtra, and Galjibag is a hill in Goa.