Describe what happened during the "Let 100 Flowers Bloom" policy.

It was a policy to allow free expression for people in the Maoist China.

Explanation:

The Hundred Flowers Campaign, which was also known as the movement of 'Let Hundred Flowers bloom' after the speech of the leader Mao Zedong who had expressed the wish to make the voice of the people of the country heard.

This was to encourage people to express their opinions about the things in the country and how they want the governance to be.

It was a rather different move from the usual for the communist regime that actively suppressed the people's voice.