The type of figure of speech used in the idiom Actions speak lou

The type of figure of speech used in the idiom Actions speak louder than words is______.
A、metaphor
B、simile
C、personification
D、metonymy
【正确答案】：C
【题目解析】：Chapter 9 Rhetorical features of idioms. We use idioms to achieve vividness of description, for idioms can create alliteration, rhyme, reiteration, repetition and juxtaposition of antonyms. Besides, there are also simile, metaphor, metonym, synecdoche, personification and euphemism in idioms.