Rita Dove describes her poem as: "How to find words for the human heart and all the emotions we ascribe to it? The path is a veritable minefield
of clichés-those well-intentioned, once-fresh expressions whose very
popularity has rendered them useless, even laughable." When she
describes the path "as a veritable minefield of clichés" she is using what
part of figurative language?

Simile
Hyperbole
Alliteration
Metaphor