The correct options are
B Undersea disturbances
C Wind
Wind plays a major role in the formation of continuous waves. The force of wind hits the surface of the ocean, which contributes to the rise and fall of water. Undersea disturbances in the Earth's composition may also result in the formation of waves as in the case of a tsunami, for instance. Ships, on the other hand, do produce waves. However, these waves are not as significant in comparison.