Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given 15 seconds to answer the questions. Now listen to the passage. Which of the following statements is NOT true

A．Finland ranks first in the Program for International Student Assessment exams.
B．Finland has almost 85 cell phones per 100 citizens.
C．A college-level degree is necessary to teach in an elementary school.
D．The job of teaching is very attractive in Finland.