The morpheme of plurality /-s/ is pronounced as /s/ in cats, /z/ in bags, and /iz/ in matches. This example shows___________.

The morpheme of plurality /-s/ is pronounced as /s/ in cats, /z/ in bags, and /iz/ in matches. This example shows___________.

A.morphemes are abstract units

B.allomorphs are phonetically conditioned and thus predictable

C.morphs are actual spoken, minimal carriers of meaning

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

正确答案是B