An 9-Year-Old Girl Is in the Clinic for a Sports

An 9-year-old girl is in the clinic for a sports physical.After some initial shyness she finally asks,"Am I normal? I don't seem to need a bra yet but I have some friends who do.What if I never get breasts?" The nurse's best response would be:

A) "Don't worry,you still have plenty of time to develop."
B) "I know just how you feel,I was a late bloomer myself.Just be patient and they will grow."
C) "You will probably get your periods before you notice any significant growth in your breasts."
D) "I understand that it is hard to feel different from your friends.Breasts usually develop between 8 and 10 years of age."