Task: Text Categorization
Input (English): Question: In the sequencing of DNA by the Sanger method: 
 Options:  <0> The 2`-3` dideoxynucleotides are essential. <1> It is necessary to use suicide inhibitors of DNA polymerase. <2> DNA must maintain its double helix structure. <3> The DNA is hydrolyzed selectively. <4> The restriction endonucleases are fundamental.
Output (English): chemistry