A is the work of Wang Xianzhi. Some people call it Mi Fei's temporary job near Wang Xianzhi, but the specific situation is unknown. Mid-Autumn Festival Post, Suxueqing Post and Yuan Bo Post are collectively called "Sanxi Hall".
B is Huai Su's work, and Huai Su's masterpiece Weeds.
C is the work of Zhang Xu, and Zhang Xu is known as "the sage of grass". Just like Huai Su, he is called "drunk" by the world. Crazy Grass's work "Four Sticks of Ancient Poems" is the best cursive script.
D is the work of Su Shi. Called Su Dongpo, some people call Huangzhou Cold Food Sticker the third running script in the world.