Task: Text Categorization
Input (English): Question: The extraction technique that is used for gas chromatographic determinations in which the analyte is desorbed or thermally desorbed is called: 
 Options:  <0> Liquid-liquid extraction. <1> Extraction in solid phase. <2> Microextraction in solid phase. <3> Subextraction in solid phase. <4> Crystallization.
Output (English): pharmacology