9. There are different words for paternal grandmother (nainai) and maternal grandmother(waipo) in Chinese, but in English the word “grandmother”is generally used in both cases, which suggests that_______.
选项：

A:equal importance is given to maternal and paternal grandparents in China
B:equal importance is given to maternal and paternal grandparents in Britain
C:language may influence people's ways of thinking to a large extent
D:people of different languages categorize things in different ways