What Are the Major Factors That Rule Out the Co-Formation

Multiple Choice

What are the major factors that rule out the co-formation theory for the Moon-Earth system?

A) Each body has different atmospheric content and a different density.
B) Each body has different surface features and different atmospheric content.
C) Each body has different chemical composition and different surface features.
D) Each body has a different density and a different chemical composition.
E) Each body has a different chemical composition and different atmospheric content.