Jack of all trades belong to which kind of variation of idioms?（

Jack of all trades belong to which kind of variation of idioms?（）
A、Replacement.
B、Deletion.
C、Shortening.
D、Dismembering.
【正确答案】：C
【题目解析】：题干译文：Jack of all trades这一习语属于何种习语变体？ Jack of all trades 是Jack of all trades and master of none的缩略形式，表示“杂而不精的人；三脚猫”。因此这一习语属于习语大缩略变异形式。 答案为C。