Answer: Pulmonary veins
Explanation:
Highly oxygenated blood returning from the pulmonary capillaries in the lungs passes through a series of vessels that join together to form the pulmonary veins—the only post-natal veins in the body that carry highly oxygenated blood. The pulmonary veins conduct blood into the left atrium, which pumps the blood into the left ventricle, which in turn pumps oxygenated blood into the aorta and on to the many branches of the systemic circuit.
In this case, oxygen and nutrients exit the systemic capillaries to be used by the cells in their metabolic processes, and carbon dioxide and waste products will enter the blood.
Dorothea was able to live a relatively normal life, despite her Jewish heritage, is because:
She had Aryan documents from her father.
The answer above is the right choice among the three remaining. The other three choices does not suite the statement or rather does not fit the question so we chose the one above.