Which Statement About Continental Drift Is True

Multiple Choice

Which statement about continental drift is true?

A) When it was proposed,the idea received almost immediate acceptance.
B) Continents move because rising magma exerts tremendous pressure on the plates that float on top of it.
C) Deep rift valleys have been generated by processes unrelated to those that cause continental drift.
D) The heat that drives continental drift is generated by the sun.
E) The heat that drives continental drift is generated by Earth's crust.