How Does Flow in the Xylem Differ from Flow in the Phloem

How does flow in the xylem differ from flow in the phloem?

A) Flow in the xylem is generally from root to leaf, whereas flow in the phloem may be in either direction.
B) Flow in the xylem requires energy expenditure by the plant, whereas flow in the phloem is completely passive.
C) Flow in the xylem is driven by transpiration, whereas flow in the phloem depends on ATP.
D) Flow in the xylem is caused by positive pressure on the xylem sap, whereas flow in the phloem results from negative pressure.
E) Xylem flow relies on selective transport, whereas phloem does not.

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