Task: Text Categorization
Input (English): Question: In the analysis of arsenic by graphite chamber losses of said element can be produced by volatilization during the carbonization stage. This fact can be minimized if: 
 Options:  <0> We raise the temperature during the carbonization stage. <1> We increase the carbonization time. <2> We add matrix modifiers that thermally stabilize the analyte. <3> We lower the temperature during the carbonization stage. <4> We modified the drying program to completely vaporize the solvent.
Output (English): chemistry