Ocean currents at the surface are influenced by size of ocean phytoplanktons coriolis effect dissolved nutrients

Coriolis Effect is a correct answer.

Explanation:

Ocean currents are generated due to density difference in water mass and also by the wind which is caused by gravity, temperature, and variation in salinity.

Ocean currents at the surface are influenced by the Coriolis Effect.

Coriolis effect describes that the current and wind shows deflection as they move over the earth's surface

Coriolis effect influenced Ocean currents at the surface by deflecting from its path, in the direction of wind moving in hemisphere.

i think it’s c but i might be wrong. if i am let me know! have a good rest of your day as well!