I think the correct answer from the choices listed above is option A. The function of arteries, veins, and capillaries in the circulatory system is that a<span>rteries generally carry oxygen-rich blood away from the heart; veins generally carry oxygen-depleted blood back to the heart; capillaries deliver blood to individual cells.</span>
It seems that you forgot the answer choices, but lucky for you, I know the answer..
Answer: creating skin tissue by combining cells from different cell lines
1) Speed = distance / time
s = 60 / 2
s = 30 km/h
In short, Your Answer would be Option B
2) Speed = distance / time
s = 25/4
s = 6.25 km/h
In short, Your Answer would be Option B
[ Direction not needed as it is speed not velocity ]
Hope this helps!