Which of the following is true about the filtrate as it travels through the tubule? A. as the permeability to water of the collecting duct increases, the osmolarity of the filtrate increases B. it...

Extracted text: Which of the following is true about the filtrate as it travels through the tubule? A. as the permeability to water of the collecting duct increases, the osmolarity of the filtrate increases B. it decreases in osmolarity as it travels through the proximal tubule C. the increasing concentration of the medullary interstitium results in more water being reabsorbed in the ascending limb D. the volume of the filtrate decreases the most in the distal convoluted tubule and collecting duct