Usage notes and language notes in a dictionary explain the follo

Usage notes and language notes in a dictionary explain the following EXCEPT_______.
A、important British and American differences
B、difficult points of grammar and style
C、information concerning the origins of words
D、the slight differences between words of similar meanings
【正确答案】：C
【题目解析】：本题考查词典内容中usage notes 和language notes的内容。