Which of the following is the internal factor within the languag

Which of the following is the internal factor within the language system that causes changes in word-meaning?（ ）
A、Analogy
B、Contrast
C、Historical reason
D、Psychological need
【正确答案】：A
【题目解析】：本题考查语言因素。The change of meaning may be caused by internal factors with the language system.语言系统的内部因素也可以引起语义变化。比如Shortening缩短； Borrowing：借词；Analogy：类比。