Which of the following carries impure blood?

مندرجہ ذیل میں سے کون ناپاک خون لے جاتا ہے؟

Aorta

Alveoli

Pulmonary Vein

Pulmonary Artery

All of these

The pulmonary arteries are the only arteries that contain oxygen-poor blood because it carries blood into the lungs to be oxygenated