Which of the Following Is True About Igneous Processes Along

Multiple Choice

Which of the following is true about igneous processes along oceanic divergent boundaries as shown in this figure?

A) Oceanic crust moves toward the ridge in a conveyor-belt manner.
B) Most of the mantle is molten, not solid.
C) Solid asthenosphere rises as plates move apart.
D) Magma generated in the crust drips down into the mantle.