What was structure of society like during prince shotoku's reign

Prince Shotoku Taishi (574 to 622) of Yamato era acclaimed the throne after the rule of Empress Suiko and is said to be a member of the imperial clan. In his reign, he had institutionalized new constitution basing on the Chinese model in which they have adopted its calendar, religious practice in Confucianism and Taoism and spread Buddhism across Japan. China has also greatly influenced its ethics and philosophy. The Seventeen-Article Constitution has established political rules such as fair trials and officials obeying the reign of the monarch.

The correct answer is "the protesters were attacked by chinese troops and many were killed or arrested."