Concept:Water crosses the endodermis by passive transport, not by energy-driven active transport.Explanation:The Casparian strip blocks water in the apoplast pathway.So water moves through the symplast and vacuolar pathway inside living cells.Osmosis and diffusion are passive processes that help move water.Active transport needs cellular energy and mainly moves ions, not water.Therefore, active transport is not involved in water movement in the endodermis.Answer:D. active transport