A Mother Brings Her 2-Month-Old Daughter in for an Examination

A mother brings her 2-month-old daughter in for an examination and says,"My daughter rolled over and hit her head on the wall,and now I have noticed that she has this spot that is soft on the top of her head.Is there something terribly wrong?" The nurse's response would be:

A) "Perhaps that could be a result of your dietary intake during pregnancy."
B) "Your baby may have craniosynostosis,a disease of the sutures of the brain."
C) "That 'soft spot' you are referring to may be an indication of cretinism or congenital hypothyroidism."
D) "That 'soft spot' is normal and actually allows for growth of the brain during the first year of your baby's life."