Which of the following is TRUE about plate tectonics?
A.Explains that continents drift around the globe, whereas the oceanic crust does not move over geologic time.
B.Explains that the earth's crust is split into plates that float on a completely molten mantle.
C.It is a controversial idea that most geologists now think is incorrect.
D.Explains that the earth's lithosphere is split into large pieces that move on top of a weak and hot layer called the asthenosphere.
