What is the path of blood through the circulatory system, beginning and ending with the lungs?

a) Right atrium β†’ right ventricle β†’ pulmonary artery β†’ lungs β†’ pulmonary vein β†’ left atrium β†’ left ventricle β†’ aorta β†’ body tissues β†’ vena cava β†’ right atrium
b) Left atrium β†’ left ventricle β†’ aorta β†’ body tissues β†’ vena cava β†’ right atrium β†’ right ventricle β†’ pulmonary artery β†’ lungs β†’ pulmonary vein
c) Right atrium β†’ right ventricle β†’ pulmonary vein β†’ lungs β†’ pulmonary artery β†’ left atrium β†’ left ventricle β†’ aorta β†’ body tissues β†’ vena cava
d) Left atrium β†’ left ventricle β†’ pulmonary artery β†’ lungs β†’ pulmonary vein β†’ right atrium β†’ right ventricle β†’ aorta β†’ body tissues β†’ vena cava

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