Ans. B. Oligohydramnios
Explanation: This child had Potter syndrome, a condition marked by pulmonary hypoplasia, limb deformities and characteristic facies (including suborbital creases, a depressed nasal tip, low-set ears, and retrognathia) as a result of oligohydramnios. Potter syndrome classically occurs in fetuses with bilateral renal agenesis, where the lack of fetal urine causes oligohydramnios. Amniotic fluid is required for proper lung development.