A morpheme that can stand alone as a word is thought to be（ ）.

A morpheme that can stand alone as a word is thought to be（ ）.
A、affixational
B、​derivational
C、free
D、bound
【正确答案】：C
【题目解析】：可以独立存在的作为一个词的语素被认为是自由的。