Task: Text Categorization
Input (English): Question: In what chromatographic mode is the stationary phase formed by solid particles with controlled pore size? : 
 Options:  <0> Chromatography of distribution in normal phase. <1> Distribution chromatography in reverse phase. <2> Ion pair chromatography. <3> Ion exchange chromatography. <4> Chromatography of molecular exclusion or size.
Output (English): pharmacology