Task: Text Categorization
Input (English): Question: With respect to the pharmacological activity of artemisinin (sesquiterpene lactone) extracted from Artemisia annua: 
 Options:  <0> It is a powerful hepatoprotective. <1> It is a powerful cholagogue. <2> It is a potent antitumor. <3> It is a selective antimalarial. <4> It is a potent antiviral.
Output (English): pharmacology