How did cultural revolution of 1966 impact China

"After Mao's death and the arrest of the Gang of Four in 1976, the Cultural Revolution finally came to an end. The Cultural Revolution damaged China's economy and traditional culture, with an estimated death toll ranging from hundreds of thousands to 20 million."  

By the way I got this off thee internet and copy  and pasted it so don't write it just look and write in your own words please. Please do not copy and paste or write what i wrote because this is someone else's explanation or answer. If you mark me brainllest that would be great but you don't have to if you don't want to. Hope this helps :))

Explanation:

c ig

explanation:

where is the options

the answer is b, encourage free trade