Which statement best describes Arteries?
1. They have thin walls and transport blood away from the heart
2. They have thick walls and transport blood toward the heart
3. They have thin walls and transport blood toward the heart4. They have thick walls and transport blood away from the heart

An artery is a blood vessel that takes blood away from the heart to all parts of the body (tissues, lungs, etc). Most arteries carry oxygenated blood; the two exceptions are the pulmonary and the umbilical arteries, which carry deoxygenated blood to the organs that oxygenate it. They have thick walls.
Arteries = Away from the Heart
Veins = Back to the Heart.