What proposed changes in 1960 caused mao to launch a cultural revolution? check all that apply.
1. to allow workers to compete for wages
2. to introduce the concept of rural markets
3. to prosecute government officials
4. to permit farmers to sell excess crops
5. to form paramilitary groups of students
6. to encourage farmers to own private land

Mr. Mao Zedong was the head of communist revolution China.

He did govern during three decades one of the most population country around the world.

According the question of Cultural revolution of Mao, it is necessary comment that:

During his government the economy was nationalised in five years plans. Around 60's he tried to increase food production as the highly centralised communes had proven to be successful.  But it was a disaster more than 30 millions died.

According the above mentioned the correct answer is number 4: To permit farmers to sell excess crops.

i think it is a system for harvesting crops more easily

general allotment act (dawes act) february 8, 1887

amendment to the dawes act, february 28, 1891

commission to the five civilized tribes (dawes commission), march 3, 1893