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 is the most effective way to reduce tobacco use according to the WHO’s report
A.Monitoring tobacco use and prevention policies. B.Protecting people by establishing smoke-free areas. C.Enforcing bans on tobacco advertising. D.Raising taxes on tobacco.