Test analysis: China's calligraphy has a long history, and the artistic work known as "the best running script in the world" is Preface to Lanting, so B is chosen.
Comments: As for Wang Xizhi, students should also know that he is from the Eastern Jin Dynasty, and his calligraphy has the reputation of "floating like a cloud, charming as a dragon". Wang Xizhi was honored as a "book saint" for his outstanding achievements in calligraphy.