Which of the following is NOT true of the fontanels?

A)They are sometimes called "soft spots."
B)They are areas of incomplete ossification in the skull of an infant.
C)They occur between the flat bones of the skull, the vertebrae, and the long bones of the upper and lower limbs.
D)They allow for cranial compression during childbirth, and rapid brain development after birth.
E)All of these are true of the fontanels.