（）or amelioration refers to the process by which words rise from

（）or amelioration refers to the process by which words rise from humble beginnings to positions of importance.
A、Extension
B、Narrowing
C、Elevation
D、Degradation
【正确答案】：C
【题目解析】：词意的升格（或改良）指词语从一开始的卑微的地位提升到重要地位的过程。