The morpheme of the past tense marker /-ed/is pronounced as/t/in worked,/d/in lived, and /I d in landed.This example shows ______.

The morpheme of the past tense marker /-ed/is pronounced as/t/in worked,/d/in lived, and /I d in landed.This example shows ______.

A.morphemes are abstract units

B.morphs are actual spoken,minimal carriers of meaning

C.allomorphs are phonetically conditioned and thus predictable

D.monomorphemic words coincide with words and function freely in a sentence

正确答案是C