4. Hideki rolls up a paper towel and puts it in a straw. He puts one end of the straw in a glass of water and observes the movement of the water from the glass up the towel.
Which statement best describes what Hideki has made a model of?
A. It shows the pathway of water from the leaves of a plant to the stem.
B. It shows the pathway of water from the leaves of a plant to the roots.
C. It shows the pathway of water from the roots of a plant through the stem.
D. It shows the pathway of water from the roots of a plant directly to the leaves.