Task: Text Categorization
Input (English): Question: The ethanol-water mixture has an azeotrope, this means that: 
 Options:  <0> From a certain concentration, the two liquids are immiscible. <1> The mixture has a minimum co-solution temperature. <2> Both components comply with Raoult's law. <3> The mixture is frozen at a single temperature. <4> Once the azeotropic composition is reached, the two liquids can not be separated by distillation.
Output (English): pharmacology