Answer:
The correct answer is option D, that is, friction.
Step-by-step explanation:
In the surface of the ocean, the water gets affected by the winds, which blows in the specific patterns due to the spinning of the Earth at distinct angles. The wind currents possess the tendency enough to affect the motion of the surface layer of the water and the water tides. Thus, it can be said that the friction between the ocean and the wind on its surface results in surface currents.