Task: Question Answering
Input (English): Question: On the thick ascending branch of the loop of Henle: 
 Options:  <1> Water is reabsorbed. <2> The tubular liquid is diluted. <3> Water reabsorption depends on ADH. <4> The reabsorption of urea depends on ADH. <5> Aldosterone stimulates Na + reabsorption.
Output (English): 2