问题详情

Which of the following efforts has been taken to halt the extinction of African languages？
A．African language has been regarded as a sign of modernity and sophistication.
B．All pupils should be taught in their mother tongue in primary school.
C．The number of official languages has recently been reduced to three.
D．The best-selling weekend newspaper has issued an African-language version.请帮忙给出正确答案和分析，谢谢！