Answer:
Correct answer is Taika Reforms .
Explanation:
Taika Reforms is the correct answer as through this reforms that were introduced in 645 with a goal to centralize the government and the authority of the ruling class.
Bakufu is a Japanese government established in 12th Century, that lasted until 19th Century.
Sinification is a process of adaptation of Chinese culture in areas outside China.
Sepukka is a part of chivalry code in Japan.