Earth's 3 principal layers that are divided into:

A. Crust, Upper Mantle, Lower Mantle, Liquid Outer Core, and Solid Inner Care

B. Crust, Upper Mantle, Corona, Radiative Zone, Core O

C. Crust, Upper Mantle, Lower Mantle, Mid-Atlantic Ridge, East Pacific Rise

D. Crust, Subduction Zone, Convergent Boundary, Solid Inner Core​