Task: Text Categorization
Input (English): Question: ADH increases the osmolality of the renal interstitial medium because it increases: 
 Options:  <0> The permeability to urea in the collector tube. <1> The water permeability of the ascending loop of Henle. <2> The flow in the straight vessels. <3> The reabsorption of NaCl in the collecting tubule. <4> The renal excretion of water.
Output (English): biology