The Mother Asks the Nurse Why the Vaccine Gardisal Is

The mother asks the nurse why the vaccine gardisal is administered at age 11 or 12 rather than earlier, as with other vaccines.The nurse would correctly educate the mother by stating:

A) "There are too many side effects if given too early."
B) "The virus is spread by sexual contact, which occurs during the teen years."
C) "The vaccine requires the onset of puberty to be effective."
D) "Other vaccines must be given first to establish immunity, upon which this immunization is based."