3.( ) is the device in which the name of one thing is changed for that of another,to which it is related by association

3.( ) is the device in which the name of one thing is changed for that of another,to which it is related by association of ideas,as having close relationship to one another.
A：Personification
B：Euphemism
C：Hyperbole
D：Metonymy
4.( ) are terms peculiar to a class,sect,trade or profession.For example,when the chemist says “Chlorophyll makes food by photosynthesis.” he is talking jargon,which in plain language means “green leaves build up food with the help of light”.
A：Jargon
B：Cant
C：Slang
D：Dialect