I believe the answer is: D) supplying oxygenated blood to the arteries that travel to all major parts.
The function of the aorta is to supply oxygen-rich blood to the rest of the body into systemic circulation. This differs from answer choice A because choice A seems to be discussing pulmonary circulation, as opposed to systemic. (Pulmonary circulation occurs within the heart and lungs; systemic circulation occurs throughout the body.) Therefore, if the aorta of a human heart is damaged, the ability to supply oxygenated blood to major body parts would be affected.
