Task: Question Answering
Input (English): Under which conditions would a sugar cube dissolve most quickly when placed in a liter of water at room temperature?  
 (A) A whole sugar cube is added and the water is stirred. (B) A whole sugar cube is added and the water is not stirred. (C) A crushed sugar cube is added and the water is stirred. (D) A crushed sugar cube is added and the water is not stirred.
Output (English): C