Questions 11 to 13 are based on the following passage. At the end of the passage, you will be given15 seconds to answer the questions. Now, listen to the passage. The speaker was amazed because______.
A．her family could even enjoy their conversation at that time B．her father and sister were already there in the waiting room C．she had not confronted them for a long time with a question D．her father needed an emergency brain transplant immediately