There was a calligrapher in the history of the Tang Dynasty. A former plain county magistrate, An Lushan counterinsurgency. His bold and honest new book style influenced the calligraphy of later gener

Test analysis: This question mainly examines the calligraphers in the Tang Dynasty. It is easy to exclude A and B from the four options, because Wang Xizhi was a famous calligrapher in the Eastern Jin Dynasty and Ou Yangxun was a famous calligrapher from Sui Dynasty to Tang Dynasty. Yan Zhenqing used the remaining two items, C and D, to create a vigorous and honest new book style, which is called "Yan Ti". He is the greatest calligrapher in the history of calligraphy in China after Wang Xizhi. Liu Gongquan learned from others and created his own "Liu Style". His calligraphy is vigorous and powerful. So the answer is d.