Which of the following is NOT one of the extra­linguistic factor

Which of the following is NOT one of the extra­linguistic factors that cause changes in meaning? （ ）
A、Cultural reason
B、Historical reason
C、Class reason
D、Psychological reason
【正确答案】：A
【题目解析】：导致词汇意义变化的特别语义因素包括历史原因，阶级原因，心理原因