Which statement correctly identifies a difference between the function of most arteries and veins?

A. Arteries carry red blood cells, whereas veins carry white blood cells.

B. Veins carry red blood cells, whereas arteries carry white blood cells.

C. Arteries carry blood to the heart, whereas veins carry blood away from the heart.

D. Veins carry blood to the heart, whereas arteries carry blood away from the heart.

This is important 1. what happens to the speed of molecules in water vapor when it condenses to form a liquid? (2 points) the molecules slow down. the molecules speed up. the molecules slow down and then speed up. the molecules speed up and then slow down. 2. how might human activities change to compensate for a decrease in water supplies? (2 points) humans might build a factory. humans might build drainage systems. humans might extract more water from the ground. human behavior does not change because of the water cycle. i'll be grateful if anyone can answer these 2 questions !