All of the Following Are Forces That May Contribute to Plate

Multiple Choice

All of the following are forces that may contribute to plate movements EXCEPT

A) convection currents within the asthenosphere.
B) centrifugal forces from the rotation of the Earth.
C) the gravitational pull of the Earth on the subducting slabs of oceanic lithosphere.
D) the gravitational pull of the Earth on plates away from the mid-ocean ridges.