Which Statement Is Correct

question 119

Multiple Choice

Which statement is correct?

• A) Water reabsorption is under 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.
• E) Water reabsorption is passive in the early portions of the nephron but is active in the distal portions of the nephron.

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Definitions:

Single-index Model

A model of stock returns that decomposes influences on returns into a systematic factor, as measured by the return on a broad market index, and firm-specific factors.

Systematic Component

The part of an investment’s return or risk that is attributable to broad market factors affecting all investments to some degree.

Single Factor Model

A financial model that describes the return on a security as a function of a single factor, typically the market return, plus security-specific variations.