Based on the construction of the characters, ______, a Chinese linguist who lived in the Han dynasty summarized the four ways of composing them in his etymological dictionary Shuowen Jiezi.

Based on the construction of the characters, ______, a Chinese linguist who lived in the Han dynasty summarized the four ways of composing them in his etymological dictionary Shuowen Jiezi.

A.Xun Zi

B.Xu Shen

C.Ma Rong

D.Zheng Xuan

正确答案：B