The words formed by affixation are called（）.

The words formed by affixation are called（）.
A、affixes
B、derivations
C、derivatives
D、derivationals
【正确答案】：C
【题目解析】：用词缀法构词叫派生构词（derivation)。用词缀法构词产生的词叫派生词（derivatives)。答案为C。