If one knows the conceptual meaning offable， fiction，story， tale， but wants to find out the difference between them， the best choice is a dictionary of synonyms， which is a（）dictionary.

If one knows the conceptual meaning offable， fiction，story， tale， but wants to find out the difference between them， the best choice is a dictionary of synonyms， which is a（）dictionary.
A、monolingual
B、bilingual
C、general
D、specialized
正确答案：D