Task: Question Answering
Input (English): Some species of bacteria produce a substance that is toxic to insects but harmless to humans. Scientists have isolated the gene that controls production of this substance. Which of the following is the best reason for inserting this gene into corn plants?  
 (A) The corn will grow faster. (B) Less fertilizer will be needed. (C) Fewer pesticides will be needed. (D) The corn will be more nutritious.
Output (English): C