Task: Text Categorization
Input (English): Question: Crohn's disease: 
 Options:  <0> It only affects the colon. <1> It presents as perianal disease, with development of fistulas or abscesses. <2> It is characterized by continuous involvement of the mucosa. <3> It is associated with alcohol consumption. <4> It starts in the infant stage of the individual.
Output (English): pharmacology