Correct Answer: (b) Gujarat, Narmada
Solution:Sardar Sarovar Dam was built across the Narmada River in the state of Gujarat. The Sardar Sarovar Dam has a height of 138.68 m (455 ft) and a length of 1210 m. This dam is the third highest (height 163 m from the base level) concrete dam in India. The dam was dedicated to the nation by the Prime Minister in September 2017. Large states like Maharashtra, Gujarat, Madhya Pradesh, and Rajasthan are connected to it for supply of water. Its objective is to expand access to water and generate electricity for the drought-prone areas of these states.