Q. A 1-week-old male neonate is admitted to the neonatal intensive care unit (NICU) because of neonatal sepsis. He was delivered at 38 weeks gestation to an 18-year-old mother. The mother has not attended any prenatal care visits. The attending physician decides to insert a central venous catheter due to hemodynamic instability. The catheter is inserted in the umbilical vein (using sterile precautions). Regarding the above procedure, which of the following is the expected route of this catheter?