Correct option is A
Damodar river was termed as “River of Sorrow or Sorrow of Bengal'' because Damodar River in its upper reaches flows rapidly and in its lower reaches, it runs too sluggishly causing major floods in the area and also the sediments brought by the Damodar creates the problem of sedimentation. To control these devastating floods Damodar Valley Corporation (DVC) was established to construct the Damodar Valley Project.