Table 40.1
-Refer to Table 40.1: Because the shark rectal gland functions only when ATP molecules are present, what can you infer about the movement of Na⁺, K⁺, and Cl^- ?

A) Movement of these ions from circulation into the rectal gland is an active process.
B) These ions move into the rectal gland with their osmotic gradient.
C) Movement of these ions takes place from a region of higher concentration to a region of lower concentration.
D) The rectal gland is unable to concentrate these ions.