A woman comes to the physician for a prenatal visit. Examination reveals that her uterus is considerably larger than her gestational age would predict. An ultrasound examination is order and reveals that she has polyhydramnios.Which of the following congenital defects of the fetus would be most likely to be associated with this abnormality?
(A) Atrial septal defect
(B) Esophageal atresis
(C) Lung hypoplasia
(D) Meckel diverticulum
(E) Renal agenesis
Answer: B: Esophageal atresis