1 belongs to the Shang Yang Reform. 2 belongs to the reform of Qi and Guan Zhong. 3 belongs to the first batch of laws of Shang Yang's political reform. Political reform in Li Kui during the Warring States Period.

Shang Yang (about 390-338 BC) was a native of Han nationality and Weiguo (now Huangliangzhuang Town, Anyang City, Henan Province). Politicians, thinkers and famous legalists in the Warring States period. Ji surname, Wei, full name Wei Yang.

Li Kui (455-395 BC) was a native of Wei during the Warring States Period (his hometown was Anyi, Yanhu District, Yuncheng City).

Guan Zhong (about 723 BC or 765438 BC+06 BC-645 BC) was born in Yingshang, China in the Spring and Autumn Period. His name is Yi Wu, Zi Zhong, so it's also called "Guan". A famous politician of Qi in the Spring and Autumn Period.

Guan Zhong (2) signs of phase decline-the earliest-the first.

Li Kui (4) do its best-second-second.

Shang Yang (1) defends the land for the field; (3) What makes people do it-at the latest-and finally, three is earlier than one.

A: A.

Clear enough ~ ~ ~ hope to adopt! !