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. What does the speaker want to prove by giving the number of female elementary school teachers and principals
A．Women enjoy equal rights in America. B．Discrimination against woman still exists in America. C．Women should be allowed to vote for their leaders. D．Women are inferior to men in managing school affairs.