Question: A student uses a high-efficiency gasoline lawnmower to cut grass. The term "high efficiency" is used to indicate that the lawnmower

  Options: 
 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.
Answer: C