Task: Question Answering
Input (English): A student uses a high-efficiency gasoline lawnmower to cut grass. The term "high efficiency" is used to indicate that the lawnmower  
 (A) cuts better than other lawnmowers. (B) is easier to use than other lawnmowers. (C) uses less energy than other lawnmowers. (D) requires more fuel than other lawnmowers.
Output (English): C