The formation of new words by converting words of one class to a

The formation of new words by converting words of one class to another class is called（）.
A、prefixation
B、compounding
C、conversion
D、clipping
【正确答案】：C
【题目解析】：转类法是将一种词类转化成另一种词类构成新词的方法。这些词在语法意义上是新词。既然这些词在形态结构上不变，只在功能上有变化，这一转类过程也叫做功能转换。答案为C。