A: Incorrect!

Compulsory education is the responsibility of a country, and every country needs to have such a responsibility.

Popularizing compulsory education is a country's ability, and each country's ability is different, which leads to the different degree of popularizing compulsory education in each country. Some countries have good popularization, universities are within the scope of compulsory education, and some countries have poor popularization, even middle schools are not within the scope of compulsory education.

Compulsory education is more popular: it forces you to go to school for free. If you don't go to school, you will.

Popularize compulsory education: let more people enjoy compulsory education for a longer period of time.