Read the following passages and answer the questions that follow:
The moon's role in causing tides is much more high and important than that of the Sun. The reason is that the moon enjoys more proximity to the earth than the sun. Tides also keep the harbours clear of refuse and mud brought down by rivers and thus they do not allow the harbours to be silted. Commonly, the tidal rivers are navigable. For the purpose of generating electricity, tidal waves are harnessed. Tides do not allow the sea water to be frozen by keeping the sea water in motion. Tides are also made use by the fishermen for sailing into the sea and returning to the harbour. In countries like Canada, U.K., France and Japan, tidal power stations are set up.
How can tides solve the power problem of the world?

Options

A. Electricity is being produced through tidal waves.
B. Tidal waves keep the steamers in motion.
C. Tidal waves melt the ice and save power.
D. None of the above.