Which of the following is a not a true statement regarding the countercurrent multiplication system?

A) The thin limb of the nephron loop is permeable to water.
B) The thick limb of the nephron loop is permeable to solutes.
C) Osmotic concentration in the nephron loop decreases as fluid flows toward the bottom of the loop.
D) Tubule fluid arrives at the DCT at about 100 mOsm/L.
E) The maximum solute concentration is about 1200 mOsm/L.