All of the Following Are True Regarding the Bones of an Average

Multiple Choice

All of the following are true regarding the bones of an average, healthy 30-year-old adult except

A) most if not all of their epiphysial plates have closed.
B) their osteoblasts are equally as active as their osteoblasts.
C) their bones contain many bony prominences and markings.
D) they are resorbing bone faster than they are laying down new bone.