In this section, you will hear several news items. Listen to them carefully and then answer the questions that follow. Question 21 is based on the following news. At the end of the news item, you will be given 5 seconds to answer the question. Now, listen to the news.
A．A 6-year-old boy inside the balloon fell out during the flight. B．The 6-year-old boy was alive after the balloon landed. C．The police said that there was no one inside the balloon when it landed. D．It was the boy who broke the balloon free of its moorings.