Questions 29 and 30 are based on the following news.At the end of the news item, you will be given 10 seconds to answer the questions. Now, listen to the news.
According to the National Headache Foundation, how many people in the United States suffer chronic headachesAbout 1 million. B．More than 45 million. C．Less than 30 million. D．More than 100 million.
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