Many words of the basic word stock enter quite a number of set expressions， idiomatic usages， proverbial sayings and the like.Take heart for example： break one"s heart； heart and soul. This example shows basic word stock is characterized by（）

Many words of the basic word stock enter quite a number of set expressions， idiomatic usages， proverbial sayings and the like.Take heart for example： break one"s heart； heart and soul. This example shows basic word stock is characterized by（）
A、stability
B、productivity
C、polysemy
D、collocability
正确答案：D