Which of the choices below best describes the systemic circulation of blood? a. The flow of blood into the right atrium and eventually out of the left ventricle. b. The movement of blood from the pulmonary trunk, through capillaries into the pulmonary veins. c. The movement of blood into the coronary arteries, through capillaries into the coronary sinus. d. The movement of blood from the aorta, through arteries and capillaries and then eventually to the vena cavae.

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