Which of the following statements is not true ?

• A

  Descending limb of loop of Henle is impermeable to solutes.

• B

  Distal convoluted tubule functions in ${\mathrm{K}}^{+}, {\mathrm{Na}}^{+}$ homeostasis

• C

  Descending limb of loop of Henle is impermeable to water.

• D

  Loop of Henle is largely responsible for concentrated urine