The Patient with Blood Type O Rh-Negative Has Given Birth

The patient with blood type O Rh-negative has given birth to an infant with blood type O Rh-positive. The infant has become visibly jaundiced at 12 hours of age. The mother asks why this is happening. The best response by the nurse is:

A) "The RhoGAM you received at 28 weeks' gestation did not prevent alloimmunization."
B) "Your body has made antibodies against the baby's blood that are destroying her red blood cells."
C) "The red blood cells of your baby are breaking down because you both have type O blood."
D) "Your baby's liver is too immature to eliminate the red blood cells that are no longer needed."