-At Which Site Is the Amount Of $\mathrm{K}^{+}$ In Tubular Fluid Lowest in a Person Who Is on Fluid

Multiple Choice

-At which site is the amount of $\mathrm{K}^{+}$ in tubular fluid lowest in a person who is on a very low- $\mathrm{K}^{+}$ diet?

A) Site A
B) Site B
C) Site C
D) Site D
E) Site E