What Is the Major Distinction Between Internal and External Earth

What is the major distinction between internal and external Earth processes?

A) Internal and external processes can occur inside and outside Earth, but external processes must also include the oxidation of Earth materials.
B) Internal processes are driven by processes like plate tectonics, and external processes are driven by the Sun.
C) Internal processes involve heat while external processes involve oxygen.
D) Internal processes can only occur inside the Earth, but external processes can occur inside or outside Earth.