In fetal circulation, blood bypasses the lungs by flowing through
A. the foramen ovale and ductus arteriosus.
B. the ligamentum venosum and ligamentum arteriosum.
C. the fossa ovalis and umbilical arteries and vein.
D. the ductus venosus and ductus arteriosus.
E. the umbilical vein and umbilical arteries.
Answer: A. the foramen ovale and ductus arteriosus.
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