Figure shoes schematic plan of blood circulation in humans with labels A to D, Identify the label and give its function`//` s.

Options

A. C-vena Cava-takes blood from body parts to right auricle, `PCO_(2)=45` mm Hg
B. D-Dorsal aorta-takes blood from heart to body parts, `PO_(2)=95 ` mm Hg
C. A-Pulmonary vein-takes impure blood from body parts, `PO_(2)=60` mm Hg
D. B-Pulmonary artery-takes blood from heart to lungs, `PO_(2)=90` mg Hg

Answer

A