Answer: A) Ocean instability due to the vertical temperature profile of the top 100 meters
Explanation:
Ocean instability are due to the vertical temperature profile of the top 100 meter are not main drivers for the surface ocean current as, the surface ocean currents are derived by the velocity of the wind and the coriolis effects. Deep water current and the circulations current are driven by the changes in the salinity and the temperature which is also known as density currents.