Potassium Is Freely Filtered at the ______, and ______ Occurs

Potassium is freely filtered at the ______, and ______ occurs throughout the nephron, except in the ______.

A) descending loop of Henle, active tubular reabsorption, glomerulus
B) ascending loop of Henle, active tubular reabsorption, glomerulus
C) glomerulus, active tubular reabsorption, descending loop of Henle
D) glomerulus, active tubular reabsorption, ascending loop of Henle