A wave is a continuous movement on water surface, usually in the ocean. Its is also said to be a moving ridge on the surface of the water.

Option A, ripples often occur on the surface of small liquids or a small body of water

Option B, currents is a continuous movements of water in one direction. When there is water erosion, the eroded water tends to move in a particular direction, that is an example of a current.

Tsunamis is a large oceanic wave caused by an earthquake under the sea. The question says circulatory movement of surface water which is continuous in the ocean, current, ripples and tsunamis are wrong as they do not fit as the right answer.