The Japanese writing of the following table is copied from a Chinese calligraphy font. In the Tang Dynasty, the person who was good at this style was () Hiragana ぁぃぅぇぉ.

Test Analysis: This question mainly examines students' accurate understanding of China's ancient calligraphy. Looking back on what they have learned, we can see that A's statement is inconsistent with historical facts. Wang Xizhi is a calligrapher in the Eastern Jin Dynasty, and the time does not match; BC's statement is incorrect. Both Yan Zhenqing and Liu Gongquan are good at regular script. D fits the question. The Japanese mainly copied China's cursive script, while Huai Su was a famous cursive script writer in the Tang Dynasty. So choose D.