Which best describes the blood flowing in an artery? A. It is oxygen rich
B. It contains no red blood cells.
C. It moves toward the heart.
D. It is oxygen poor.

Process of elimination is helpful for this question.

You can already remove B, and D, because if you were to be taking these classes, you would know that blood obviously has red blood cells in it, and it is rich in oxygen.

This leads into the
of A, which is the correct answer of “It is oxygen rich.”

C is a no contest answer because blood in the arteries actually moved away from the heart, not towards it.

Hope this helps :)))