Question

aorta and pulmonary veins
pulmonary arteries and pulmonary veins
aorta and venae cavae
pulmonary arteries and venae cavae
venae cavae and pulmonary veins

Explanation:

To determine the correct pair, we analyze the circulatory system: The aorta (carries oxygenated blood to the body) and venae cavae (carry deoxygenated blood to the heart) are part of the systemic circulation. Pulmonary arteries carry deoxygenated blood to the lungs, and pulmonary veins carry oxygenated blood from the lungs. The question likely relates to identifying vessels with specific blood types (e.g., oxygenated/deoxygenated or systemic/pulmonary). The aorta (systemic, oxygenated) and venae cavae (systemic, deoxygenated) are a key systemic pair.

Answer:

C. Aorta and venae cavae