The correct choice is (a) 2.4 X 10^6 MW
Best explanation: The total tidal power that is dissipated throughout the world is estimated at 2.4 X 10^6 MW of these some 10^6 MW are dissipated in shallow seas and coastal areas and are not recoverable. Because of very high cost of dams and other structures associated with tide energy conversion system, only a small amount of the rest can be satisfied by tidal energy.