Which of the following statements about our solar system's terrestrial worlds are true?
A. They all have lithospheres that extend almost all the way to their cores.
B. Their interiors all have a core, mantle, and crust.
C. They all have surfaces that are heavily cratered today.
D. They are all of nearly the same age.
E. They are all made primarily of rock and metal.
F. They all have active volcanoes.
