what drives tectonic plate movement? coriolis effect convection currents gravity the earths magnetic core

Brief Explanations:

Tectonic plate movement is driven by convection currents in the Earth's mantle. The Coriolis effect affects wind and ocean currents, gravity has a minor role in some plate processes but not the main driver, and the Earth's magnetic core is related to the magnetic field, not plate movement. So the correct option is the one with "convection currents".

Answer:

B. convection currents (assuming the options are labeled A: coriolis effect, B: convection currents, C: gravity, D: the earth's magnetic core)