Final answer:
The most likely finding in the newborn of a mother with type 1 diabetes is being large for gestational age and hypoglycemic.
Step-by-step explanation:
The most likely finding in a newborn whose mother has a history of type 1 diabetes with moderate control of blood sugar during pregnancy is A. Large and hypoglycemic. Infants born to mothers with diabetes are at increased risk for macrosomia, which refers to a birth weight over 8 pounds 13 ounces or about 4,000 grams, due to the increased supply of glucose from the mother. Additionally, once the umbilical cord is cut, the newborn's high insulin level relative to glucose can lead to neonatal hypoglycemia. It's essential to monitor the infant's blood glucose levels and provide treatment if required to prevent complications associated with low blood sugar levels in the newborn.