The correct option is d. Students who helped Mao cleanse universities of western sympathizers during the cultural revolution.
Chairman Mao Zedong organized and led the Red Guards, a large-scale paramilitary social movement led by students, from 1966 to 1967, during the initial stages of the Chinese Cultural Revolution, which he had started. Our future is an armed revolutionary youth organization, according to Chairman Mao. The Red Guards first encountered opposition, but with Mao's personal support, the movement quickly gained momentum. The "Red August" of 1966 marked the culmination of the movement in Beijing, which eventually spread to other parts of mainland China.
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