I think its D.Traditional schools should allow students to attend online courses Hope this helped!
*A. Derogatory and hostile Correct! The correct answer is: Derogatory and hostile.
For the main reason that "it promoted sacrifice for the common good." the speech was commonly read during the Cultural Revolution. This speech was the primary political propaganda of Mao Zedong as a slogan during the dark times of the Chinese cultural history.
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