Which of the following statements about the distinction between metaphor and metonymy is right?

A、Metaphorcanbeconvertedintosimile.;
B、Metonymycannotbeconvertedintosimile.;
C、Metaphorappealstothereader'simaginationforsimilaritybetweenthetwodifferentobjects.;
D、Metonymyappealstothereader'simaginationfortheassociationofideasitprovokes.