There are five types of meaning changes and among which （ ）are t

There are five types of meaning changes and among which （ ）are the most common.
A、degradation and elevation
B、transfer and extension
C、elevation and narrowing
D、extension and narrowing
【正确答案】：D
【题目解析】：词义变化有五种类型，其中最常见的是词义扩展和词义缩小。