You are called to the nursery to evaluate a newborn. The mother has a history of systemic lupus erythematosus and gestational diabetes. The nurses are concerned because the baby has developed petechiae and bruising after his bath. Vital signs have been stable, with a heart rate in the 60 beats per minute range and a respiratory rate in the 40 breaths per minute range. You note a large liver, scattered petechiae, and an erythematous rash on the cheeks and on the bridge of the nose.
a) Coagulopathy
b) Infection
c) Hematologic malignancy
d) Congenital heart disease