Task: Question Answering
Input (English): Water used in a factory is heated to 75 degrees Celsius. It is discharged into a nearby river that has a normal temperature of 20 degrees Celsius. Which should most likely be done to minimize damage to the river?  
 (A) decrease the temperature of the factory water (B) increase the temperature of the river water (C) remove the vegetation from the river (D) add more fish to the river
Output (English): A