Questions 21 to 23 are based on the following news. At the end of the news item, you will be given 15 seconds to answer the questions. Now, listen to the news. Which one is not included in the conditions for the US’s changing attitude towards Iran
A．To abandon their nuclear weapons program. B．Iran’s leader must accept the suggestion of peace-lovers. C．To turn over AI-Qaida terrorists in their custody. D．The Iran leaders shall acknowledge the faults.