The word picture originally denoted mere "painting", but now has

The word picture originally denoted mere "painting", but now has come to include "drawing" and even "photograph". This example shows（ ）of meaning.
A、extension
B、narrowing
C、degradation
D、transfer
【正确答案】：A
【题目解析】：本题主要考查词义的扩大。picture “图画”一词最初仅指“painting（绘画）”，但现在已经包含了“drawing（绘画）”甚至“photograph（照片） ”。这个例子显示了意义的扩大。 答案为A。