The idiom “toss and turn” is a(n) （ ）as far as rhetorical featur

The idiom “toss and turn” is a(n) （ ）as far as rhetorical features of idioms are concerned.
A、alliteration
B、metaphor
C、metonymy
D、rhyme
【正确答案】：A
【题目解析】：就习语的修辞特点而言，“toss and turn（翻来覆去）”是一个头韵。头韵是指两个单词或两个单词以上的首字母相同，形成悦耳的读音。