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 can we learn from the lady’s comment
A．Most Londoners were frightened. B．Most Londoners became rather confused. C．Most Londoners took Exercise Flood Call calmly. D．Most Londoners complained about the trouble caused by the Call.