This is the college course English version.
You can take the quiz in every course section to get a certificate.
Level 1 has 30 courses so you have to finish 30 quizzes to get the level 1 certificate.
Level 2 has 41 courses so you have to finish 41 quizzes to get the level 2 certificate.
Level 3 has 14 courses so you have to finish 14 quizzes to get the level 3 certificate.