The correct answer to this open question is the following.
Although there are no options attached we can say the following.
This Communist Red Guard quote reflects the political repression that Mao’s political opponents faced during the Cultural Revolution in that it clearly expresses the authoritative ways of Communist Chinese leader Mao Zedong. The quote also indicates the reprehension and dictatorial ways of Mao Zedong and his people.
Let's read it again: "Those who oppose Mao Tse-tung's thought, no matter when they do so and what kind of ‘authorities’ they are, will be publicly declared as ‘evil’ by the entire Party and the whole nation."
Mao Zedong was the ultimate dictator and he exerted his power and control all over China.
Let's have in mind that programs like the Chinese Cultural Revolution of the 1960s aimed to eliminate the opposition to Mao Zedong.
When Mao Zedong thought that the leaders of the Communist represented a threat to him, he launched the Cultural Revolution in China. In 1966, Mao called the Young People of the Communist Party to take a stand and actively participate and get rid of the negative elements that "had taken China in the opposite direction" of the Communist ideal. Mao formed paramilitary groups with the young people called the "Red Guards."