A 15-year-old mom was living with her parents, who supported her and her newborn child. She held the ...

A 15-year-old mom was living with her parents, who supported her and her newborn child. She held the baby while the first series of immunizations was given to the infant.
 
  However, when it was time for her own tetanus shot booster, there was a problem. What might have been the problem?
 
  A. Although she can consent for her newborn's care, she needs parental consent for her own.
  B. The young mother could not have an immunization while breastfeeding a baby.
  C. The young mother should not have an immunization until she has had her postpartum checkup.
  D. After childbirth is an inappropriate time for a new mother to receive an immunization.