A 21-year-old primigravida gives birth at term to a 2800-g infant with no apparent external anomalies. The next day, theinfant develops increasing respiratory distress and cyanosis and dies. At autopsy, a slitlike left ventricular chamber, small left atrium, and atretic aortic and mitral valves are seen. Through which of the following structures could oxygenated blood most likely have reached the infant's systemic circulation? (A) Anomalous venous return (B) Foramen ovale (C) Patent ductus arterios us (D) Right fourth aortic arch (E) Truncus arterios us (F) Ventricular septal defect