Li Shu was written by Cheng Miao, a native of Du (now south of Chang 'an County, Shaanxi Province), at the behest of Qin Shihuang. This font is convenient to write, so it is not as good as an auxiliary seal script.
Therefore, it is called "Qin Zhuan".
BC does not directly rule out Qin.
The most precious calligraphy relic in the Qin Dynasty is 1975100 bamboo slips unearthed from the Qin tomb in Sleeping Tiger Land, Yunmeng, Hubei Province in February. These bamboo slips were handed down from the Qin Dynasty with ink, and they are the relics of Qin Shihuang after the reunification of the country in 1956. When Zhang Huaiguan praised Cheng Miao in the Tang Dynasty, he said, "Turning is literature, and Cheng Yun is the first. It is elegant, such as listening to orchestral music, and the autumn is long and vigorous. " This praise for Cheng Miao's calligraphy is not an exaggeration to describe the bamboo slips of Qin Tomb. These Qin people's ink marks are immature official scripts, which can be combined with official scripts into one furnace. They are ingenious in their own mistakes and have made innovations in ancient times, providing us with a good example of calligraphy inheritance and innovation.
From this we can know that it should be D.