Final answer:
The nurse would most likely expect to find the risk factor of 3) gestational diabetes in the maternal history of the neonate with microcephaly and microphthalmia.
Step-by-step explanation:
The nurse would most likely expect to find the risk factor of gestational diabetes in the maternal history of the neonate with microcephaly and microphthalmia. Gestational diabetes is a condition that occurs during pregnancy when a woman's blood sugar levels become elevated. It can increase the risk of various complications during pregnancy, including birth defects.