Which of the following provides the best explanation as to why convection currents in the mantle cause tectonic plate movement? A.
Warm, less dense material rises: while cool more dense material sinks. This creates convection currents which cause the tectonic plates to move.

B.
Warm, more dense material rises; while cool, less dense material sinks. This creates convection currents which cause the tectonic plates to move.

C.
Cool, less dense material rises; while warm, more dense material sinks. This creates convection currents which cause the tectonic plates to move.

D.
Cool, more dense material rises; while warm, less dense material sinks. This creates convection currents which cause the tectonic plates to move.