Which of These Statements Applies to Water Reabsorption

Multiple Choice

Which of these statements applies to water reabsorption

A) It is under the control of vasopressin throughout the length of the nephron.
B) The ascending limb of the loop of Henle is always impermeable to water.
C) Vasopressin makes the distal and collecting tubules impermeable to water.
D) Fifteen percent of the filtered water osmotically follows the absorption of Na⁺ and other solutes in the proximal tubule.