The oxygenated blood from lungs to heart is transport by the:

Explanation

The pulmonary veins are the only veins in the body that carry oxygenated blood. They are four in number, two from each lung, and they drain into the left atrium of the heart. The pulmonary veins transport oxygenated blood from the lungs to the heart. The lungs are responsible for exchanging oxygen and carbon dioxide with the blood. The blood that enters the lungs is deoxygenated, meaning that it has lost most of its oxygen. The lungs take in oxygen from the air and transfer it to the blood. The blood then leaves the lungs oxygenated and returns to the heart. The pulmonary veins are important for transporting oxygenated blood to the heart. Without the pulmonary veins, the heart would not be able to receive oxygenated blood and would not be able to pump blood to the rest of the body.