Earth's Interior Is Layered Because

Multiple Choice

Earth's interior is layered because

A) centrifugal force separated out the materials based on weight while Earth was still molten.
B) materials became sorted based on density while Earth was still molten.
C) materials became sorted based on electromagnetic fields while Earth was still molten.
D) materials became sorted based on temperature as Earth cooled.
E) centripetal force separated out the materials based on weight while Earth was still molten.