Of the affixes (italicized) in the following words, ______ is a

Of the affixes (italicized) in the following words, ______ is a inflectional affix.
A、dis-like
B、in-correct
C、fast-est
D、teach-er
【正确答案】：C
【题目解析】：屈折词缀或屈折语素表示数、时、度、格等不同的语法关系或语法范畴。保留下来的包括:-ed，-ed，，-en，-ing，-’s，-er，-est